Register League Encyclopedia

Active Leagues

Active Leagues
AAA From To Yrs
Triple-A East202120211
Triple-A West202120211
AA From To Yrs
Double-A Northeast202120211
Double-A Central202120211
Double-A South202120211
Adv A From To Yrs
High-A East202120211
High-A Central202120211
High-A West202120211
A From To Yrs
Low-A East202120211
Low-A West202120211
Low-A Southeast202120211
Rookie From To Yrs
Florida Complex League202120211
Arizona Complex League202120211
Foreign From To Yrs
Japan Eastern League1997202125
Dutch Major League1999202123
Chinese Professional Baseball League1990202132
Japan Pacific League1950202172
Japan Central League1950202172
Korean Baseball Organization1982202140
British National Baseball League189020215
Japan Western League1997202125
Fall From To Yrs
Arizona Fall League1992202129
Winter From To Yrs
Mexican Pacific Winter League1945202177
Venezuelan Winter League1944202177
Puerto Rican Winter League1933202184
Dominican Winter League1937202172
Foreign Rookie From To Yrs
Dominican Summer League1985202136
Independent From To Yrs
Pecos League2011202111
Frontier League1993202128
Pioneer League202120211
American Association1902202117
Mexican League1925202131
Atlantic League1895202124
United Shore League201620216
NCAA From To Yrs
Gulf South Conference201320219
West Coast Conference2011202111
Northwest Conference201720215
Conference USA2011202111
Little East Conference201720215
Atlantic East Conference201920213
Peach Belt Conference201320219
Centennial Conference201720215
Wisconsin Intercollegiate Athletic Conference201720215
Ivy League2011202111
Missouri Valley Conference2011202111
Southern Conference2011202111
Colonial Athletic Association2011202111
Great American Conference201320219
Pennsylvania State Athletics Conference201320219
Heartland Collegiate Athletic Conference201720215
Southern Collegiate Athletic Conference201720215
Colonial States Athletic Conference201720215
Northeast Conference2011202111
Atlantic 10 Conference2011202111
Big 12 Conference2011202111
Great Midwest Athletic Conference201320219
College Conference of Illinois and Wisconsin201720215
Sunshine State Conference201320219
Big South Conference2011202111
New England Small College Athletic Conference201720215
Southeastern Conference2011202111
City University of New York Athletic Conference201720215
Ohio Athletic Conference201720215
Atlantic Sun Conference2011202111
Patriot League2011202111
North Coast Athletic Conference201720215
New England Women's and Men's Athletic Conference201720215
America East Conference2011202111
NCAA Division II Independents201320219
Presidents' Athletic Conference201720215
Northeast 10 Conference201320219
American Athletic Conference201420218
Mid-American Conference2011202111
Pacific West Conference201320219
Pac-12 Conference2012202110
American Rivers Conference201920213
Mountain East Conference201420218
North Atlantic Conference201720215
Commonwealth Coast Conference201720215
Skyline Conference201720215
Summit League2011202111
Commonwealth Conference201720215
Atlantic Coast Conference2011202111
Mid-America Intercollegiate Athletic Association201320219
Empire 8 Conference201720215
Mountain West Conference2011202111
Lone Star Conference201320219
Ohio Valley Conference2011202111
Minnesota Intercollegiate Conference201720215
University Athletic Association201720215
Conference Carolinas201320219
Horizon League2011202111
New England Collegiate Conference201720215
Midwest Conference201720215
USA South Athletic Conference201720215
Great Northwest Conference201320219
Landmark Conference201720215
Big West Conference2011202111
St. Louis Intercollegiate Athletic Conference201720215
American Southwest Conference201720215
State University of New York Athletic Conference201720215
South Atlantic Conference201320219
Northern Sun Conference201320219
NCAA Division III Independents201720215
Liberty League201720215
New Jersey Athletic Conference201720215
Coast-to-Coast Athletic Conference202120211
North Eastern Athletic Conference201720215
Sun Belt Conference2011202111
Western Athletic Conference2011202111
Great Lakes Valley Conference201320219
Big East Conference2011202111
Massachusetts State Collegiate Athletic Conference201720215
Northern Athletics Conference201720215
Rocky Mountain Athletic Conference201320219
Southland Conference2011202111
Southern Athletic Association201720215
Southwestern Athletic Conference2011202111
Michigan Intercollegiate Conference201720215
Big Ten Conference2011202111
Freedom Conference201720215
Allegheny Mountain Collegiate Conference201720215
Metro Atlantic Athletic Conference2011202111
Central Atlantic Collegiate Conference201320219
California Collegiate Athletic Association201320219
Upper Midwest Athletic Conference201720215
Great Lakes Intercollegiate Athletic Conference201320219
Southern California Intercollegiate Athletic Confe201720215
Southern Intercollegiate Athletic Conference201320219
East Coast Conference201320219
Mid-Eastern Athletic Conference2011202111
Great Northeast Conference201720215
Old Dominion Athletic Conference201720215
NAIA From To Yrs
Heart of America Athletic Conference201720215
Kansas Collegiate Athletic Conference201720215
Association of NAIA Independents201720215
Mid-South Conference201720215
California Pacific Athletic Conference201720215
Sooner Athletic Conference201720215
Chicagoland Collegiate Athletic Conference201720215
Appalachian Athletic Conference201720215
River States Conference201720215
North Star Athletic Association201720215
Golden State Athletic Conference201720215
Red River Athletic Conference201720215
Wolverine-Hoosier Athletic Conference201720215
Crossroads League201720215
American Midwest Conference201720215
Cascade Collegiate Conference201720215
Southern States Athletic Conference201720215
Great Plains Athletic Conference201720215
The Sun Conference201720215
Collegiate Summer From To Yrs
Atlantic Collegiate Baseball League202120211
Alaska Baseball League201720214
MLB Draft League202120211
South Florida Collegiate Baseball League201720215
Great Lakes Summer Collegiate League201520216
Northwoods League201520217
Valley Baseball League201720214
West Coast League201520216
Hamptons Collegiate League201720214
Western Canadian League201920212
Coastal Plain League201520217
Prospect League201520216
Texas Collegiate League201520216
New York Collegiate League201820213
Southern Collegiate Baseball League202020212
Expedition League201820214
Florida Collegiate Summer League201720215
Sunbelt League201820213
Cal Ripken Collegiate Baseball League201520216
Perfect Game Collegiate Baseball League201520216
Cape Cod League201520216
New England Collegiate Baseball League201520216
Appalachian League202120211
Futures Collegiate Baseball League201720215

Historic Leagues

Historic Leagues
Open From To Yrs
Pacific Coast League195219576
AAA From To Yrs
Triple-A East202120211
Triple-A West202120211
International League1946201974
Mexican League1967201952
Pacific Coast League1946201968
Mexican League (Spring)201820181
Mexican League (Autumn)201820181
American Association1946199746
Mexican League (6 team season)198019801
Inter-American League197919791
AA From To Yrs
Double-A Northeast202120211
Double-A Central202120211
Double-A South202120211
Southern League1964201955
Eastern League1963201957
Texas League1946201973
Dixie Association197119711
Mexican League1955196612
South Atlantic League196319631
Southern Association1946196116
Pacific Coast League1912194534
International League1912194534
American Association1912194534
Adv A From To Yrs
High-A East202120211
High-A Central202120211
High-A West202120211
Florida State League1990201930
California League1990201930
Carolina League1990201930
A From To Yrs
Low-A East202120211
Low-A West202120211
Low-A Southeast202120211
Midwest League1963201957
South Atlantic League1946201957
Carolina League1963198927
Florida State League1963198927
California League1963198927
Western Carolinas League1963197917
Mexican Center League1963197816
Lone Star League197719771
Mexican Pacific League197619761
Gulf States League197619761
Mexican Southeast League196419707
Mexican Northern League196819692
New York-Pennsylvania League193319669
Northern League196319653
Northwest League196319653
Pioneer League196319631
Georgia-Florida League196319631
Eastern League1895196256
Western League1892195856
Western International League195219543
Central League194819514
Texas League1921193515
Southern Association1902193534
American Association190319119
Pacific Coast League190419118
Pacific National League190319031
Western Association188819013
American League190019001
Atlantic League189618992
Eastern Association189118911
A-1 From To Yrs
Southern Association1936194510
Texas League193619427
Short-Season A From To Yrs
Northwest League1966201954
New York-Pennsylvania League1967201953
Northern League196619716
Rookie From To Yrs
Florida Complex League202120211
Arizona Complex League202120211
Gulf Coast League1966201954
Arizona League1988201932
Appalachian League1963201957
Pioneer League1964201956
Florida East Coast League197219721
Florida Rookie League196519651
Cocoa Rookie League196419641
Sarasota Rookie League196419641
Negro From To Yrs
Negro American League1949196011
Baseball Association Of America194919491
West Coast Baseball League194619461
United States Baseball League194519462
Negro Southern League1920194518
Negro Major Baseball League Of America194219421
Texas-Oklahoma Negro League193319353
Texas-Louisiana League193119311
American Negro League193119311
Texas Negro League192419318
Denver City League193019301
Southern Negro League192019212
Ilip190619061
National Colored Baseball League188718871
Southern League Of Colored Base Ballists188618861
B From To Yrs
Carolina League1949196214
Northwest League195519628
Illinois-Indiana-Iowa League1902196153
Big State League1947195711
Southwestern League195619572
Piedmont League1932195524
West Texas-New Mexico League195519551
Tri-State League1907195518
Florida International League194919546
Gulf Coast League195119533
Interstate League1897195218
Western International League1922195113
Southeastern League1926195017
Colonial League194719504
New England League1892194931
Mexican National League194619461
South Atlantic League1921194217
Quebec Provincial League194019401
Northeastern League193419341
Central League1903193424
Mississippi Valley League193319331
New York-Pennsylvania League1923193210
Virginia League1895192811
Michigan State League189519262
Michigan-Ontario League191919268
Quebec-Ontario-Vermont League192419241
Eastern Canada League192219232
Pacific Coast International League191819224
Western Canada League192019212
Texas League1892192011
Northwest International League191919191
Eastern League191619183
Northwestern League1905191713
New York State League1894191718
Canadian League191419152
Eastern Association191319142
Connecticut State League189419129
Pacific National League190419052
Pacific Northwest League189219022
Southern League188619018
Western League190019001
Western Association189518995
Atlantic League189718982
Pennsylvania State League189218963
Texas-Southern League189518951
Western Interstate League189518951
Montana State League189218921
California League189218921
Nebraska State League189218921
C From To Yrs
Northern League1913196223
Mexican Center League196119622
Pioneer League1939196221
California League1941196219
Arizona-Mexico League195519584
Evangeline League194919579
Central Mexican League195519573
Provincial League195019556
Cotton States League1936195515
Longhorn League195119555
West Texas-New Mexico League194619549
Mountain States League195419541
Western Association1905195435
Arizona-Texas League194019549
Southwest International League195119522
Border League194619516
Canadian-American League1936195113
Middle Atlantic League1925195124
Sunset League194719504
Rio Grande Valley League195019501
Gulf Coast League195019501
East Texas League193619508
Central Association194719493
Florida International League194619483
Carolina League194519484
Lone Star League194719482
Virginia League1906194216
Mountain State League194219421
Michigan State League194019412
Cape Breton Colliery League193919391
Interstate League189619392
West Dixie League193419352
East Dixie League193419352
Dixie League193319331
Piedmont League1921193111
Ontario League193019301
Utah-Idaho League192619283
Florida State League192119244
Southwestern League192219232
South Atlantic League1904192016
Western Canada League191919191
Southern Michigan League191119154
Colonial League191419141
Wisconsin-Illinois League191019145
Canadian League191219132
Central International League191219121
Ohio-Pennsylvania League190519117
Minnesota-Wisconsin League191119111
Texas League189719108
Hudson River League190419074
Interstate Association190619061
Northern-Copper Country League190619061
South Texas League190319064
Missouri Valley League190419052
North Carolina League190219021
Virginia-North Carolina League190119011
New York State League189719014
Southern League189918991
Texas Association189618992
Central League189718971
New Pacific League189618961
Iron And Oil League189518951
Short-Season D From To Yrs
Appalachian League195719626
Nebraska State League195719593
D From To Yrs
Alabama-Florida League1936196216
Midwest League195619627
New York-Pennsylvania League195719626
Western Carolina League194819628
Florida State League1919196229
Georgia-Florida League1935196222
Sophomore League195819614
Mexican Center League196019601
Sooner State League1947195711
Nebraska State League1910195620
Pennsylvania-Ontario-New York League1939195618
Georgia State League1906195613
Kentucky-Illinois-Tennessee League1903195531
Mississippi-Ohio Valley League194919557
Appalachian League1911195528
Tar Heel League193919544
Wisconsin State League1905195314
Mountain States League191119538
North Carolina State League1913195219
Kansas-Oklahoma-Missouri League194619527
Coastal Plain League1937195212
Far West League194819514
Ohio-Indiana League190719516
Georgia-Alabama League1913195114
Virginia League190019517
Longhorn League194719504
Alabama State League194019507
North Atlantic League194619505
Tobacco State League194619505
Blue Ridge League1915195020
Rio Grande Valley League193119492
Eastern Shore League1922194916
Illinois State League194719482
Evangeline League1934194812
Ohio State League1908194720
Pennsylvania State Association193419429
Florida East Coast League194019423
West Texas-New Mexico League193719426
Bi-State League1915194210
Mountain State League193719415
Western League193919413
Northeast Arkansas League190919419
Arkansas-Missouri League193619405
Northern League1903194013
Arizona-Texas League193119395
Texas Valley League192719383
Cape Breton Colliery League193719382
Oklahoma State League191219365
Alabama-Mississippi League193619361
Keystone League193519351
Arkansas State League190819354
Mississippi Valley League1922193211
Interstate League1905193210
Cotton States League1902193223
Palmetto League193119311
East Texas League191619316
Old Dominion League193019301
Arizona State League192819303
Eastern Carolina League190819296
Lone Star League192719293
West Texas League192019295
California State League191019297
Anthracite League192819281
Tri-State League192419263
Southwestern League190419265
Gulf Coast League190719263
Texas Association192319264
Blue Grass League190819248
Panhandle-Pecos Valley League192319231
South Dakota League192019232
North Dakota League192319231
Dakota League192119222
Texas-Oklahoma League191119226
Mississippi State League192119211
Northern Utah League192119211
Alabama-Tennessee League192119211
Western Association191119217
Piedmont League192019201
Louisiana State League192019201
Central Association1908191710
Central Texas League191419174
Dixie League191619172
Potomac League191619161
Florida-Alabama-Georgia League191519151
Buckeye League191519151
Atlantic League191419152
Middle Texas League191419152
Rio Grande Association191519151
Western Tri-State League191219143
Eastern Michigan League191219143
Michigan State League189719147
Illinois-Missouri League190819147
Kansas State League190519147
Western Canada League190719148
Virginia Mountain League191419141
Union Association191119144
Pennsylvania-West Virginia League190819143
New York-New Jersey League191319131
Missouri-Iowa-Nebraska-Kansas League191019134
New Brunswick-Maine League191319131
Southern Michigan League190619136
Southern California League191319131
Border League191219132
Empire State League190619133
Central Kansas League190819125
South Central League190619122
Rocky Mountain League191219121
Minnesota-Wisconsin League190919123
Carolina Association190819125
Massachusetts-Connecticut League191219121
Ohio-Pennsylvania League191219121
Northern State of Indiana League190919124
Washington State League191019123
Southeastern League191019123
Eastern Kansas League191019112
Twin States League191119111
Missouri State League191119111
San Joaquin Valley League191019112
Central California League191019112
Tidewater League191119111
Canadian League189919113
Southwest Texas League191019112
Indiana-Michigan League191019101
West Virginia League191019101
Virginia Valley League191019101
Southern Illinois League191019101
Southern California Trolley League191019101
Northern Association191019101
Connecticut Association191019101
Wisconsin-Illinois League190719093
Inter-Mountain League190919091
Oklahoma-Kansas League190819081
Maine State League190719082
South Carolina League190619083
Atlantic Association190819081
International League190819081
Inland Empire League190219082
Eastern Illinois League190719082
North Texas League190519072
Oklahoma-Arkansas-Kansas League190719071
Southern New Hampshire League190719071
New Hampshire State League190719071
Iowa League of Professional Baseball Clubs190419074
Pennsylvania-Ohio-Maryland League190619072
Northern-Copper Country League190719071
Western Pennsylvania League190719071
Texas League190219063
Southwest Washington League190319064
Arkansas-Texas League190619061
Copper Country Soo League190419052
Western Ontario Baseball Association190519051
Delta League190419052
Virginia-North Carolina League190519051
Connecticut State League190219043
Oregon State League190419041
Missouri Valley League190219032
Southwest Iowa League190319031
Iowa-South Dakota League190219032
Hudson River League190319031
Northern Maine League190219021
Pennsylvania State League190119022
Northern New York League190219021
Pacific Northwest League190119011
Illinois-Indiana-Iowa League190119011
California League189818981
New Jersey State League189718971
South New Jersey League189618961
E From To Yrs
Twin Ports League194319431
Indiana-Illinois League189918991
California League189918991
Connecticut State League189118911
F From To Yrs
Connecticut State League189719015
New England League189918991
Pacific Northwest League189818981
Ohio State League189818981
Iron and Oil League189818981
Red River Valley League189718971
Central Pennsylvania League189718971
Foreign From To Yrs
Japan Eastern League1997202125
Dutch Major League1999202123
Chinese Professional Baseball League1990202132
Japan Pacific League1950202172
Japan Central League1950202172
Korean Baseball Organization1982202140
British National Baseball League189020215
Japan Western League1997202125
Australian Baseball League1989202021
Cuban National Series1961202060
Italian Baseball League1999202022
Federation Francaise De Baseball200220195
Israel Baseball League200720071
China Baseball League200220054
International Baseball League199920035
Taiwan Major League199720026
Pro. League De Nicaragua196019601
Cuban Pro. League196019601
Pro. League De Panama196019601
Cuban League1878196073
Japanese Baseball League1939194911
Japanese Baseball League (Spring)193619383
Japanese Baseball League (Fall)193619383
Cuban-American Negro Clubs Series190419159
Cuban-American Major League Clubs Series190819136
Cuban Fall Championship190119011
Fall From To Yrs
Arizona Fall League1992202129
California Fall League199919991
Maryland Fall League199819981
Winter From To Yrs
Mexican Pacific Winter League1945202177
Venezuelan Winter League1944202177
Dominican Winter League1937202172
Puerto Rican Winter League1933202184
Caribbean Series2006202015
Florida Winter Baseball League200920091
Probeis Winter League200120044
Hawaii Winter League199319975
Colombian Winter League195319857
Panama Winter League1940196828
Nicaraguan Winter League195719668
Occidental Winter League195419639
Veracruz Winter League195219629
Northern Autumn League196119611
Roberto Avila League196019612
Florida Winter League196019612
Panama-Nicaragua Winter League196119611
Sonora Winter League195819614
Cuban Winter League1882196078
Southern California Winter League191419572
Mexican Pacific Coast League195119577
Canal Zone League194819503
California Winter League1894194745
Cuban Independent Winter League194719471
Cuban Federation Winter League194619461
Imperial Valley League191419152
Cuban General League191119111
Spring From To Yrs
Citrus League197219721
Women's From To Yrs
All-American Girls Professional Baseball League1943195412
Foreign A From To Yrs
Tabasco League200320031
Foreign Rookie From To Yrs
Dominican Summer League1985202136
Venezuelan Summer League1997201519
Mexican Academy League199720015
Mexican Rookie League196819681
Winter Rookie From To Yrs
Hawaii Winter Baseball200620083
Florida Instructional League1958200749
Arizona Instructional League1960199132
Florida Instructional League South196919691
Florida Instructional League North196919691
Peninsula Winter League1959196810
Arizona Rookie League196419641
Florida East Coast Instructional League196419641
Independent From To Yrs
Pecos League2011202111
Frontier League1993202128
Pioneer League202120211
American Association1902202117
Mexican League1925202131
Atlantic League1895202124
United Shore League201620216
Liberation League202020201
Constellation Energy League202020201
Washington League202020201
City of Champions Cup202020201
All-American Baseball Challenge202020201
Pacific Association201420196
Canadian-American Association2005201915
Mount Rainier League201520151
United League Baseball200620147
North American League201120122
Golden Baseball League200520106
Northern League1902201019
Continental Baseball League200720093
Arizona Winter League200720093
South Coast League200720071
Central League200220054
Southwestern League189520042
Northeast League1995200410
Southeastern League200220032
Canadian Baseball League200320031
Arizona-Mexico League200320031
Western League199520039
Texas-Louisiana League199420018
All-American Association200120011
Heartland League199619983
Big South League199619972
Prairie League199519973
North Atlantic League199519962
Atlantic Coast League199519951
North Central League199419952
Golden State League199519951
Mid-America League199519951
Great Central League199419941
Quebec Provincial League1922197036
Manitoba-Dakota League195019556
Provincial League194819492
Carolina Baseball League193519384
Colonial League191519151
Federal League191319131
United States League191219132
California State League190219095
Pennsylvania-New Jersey League190819081
Blue Mountain League190719071
Eastern Colored Independents190719071
Nevada State League190719071
Tri-State League190419063
Empire State League190519051
Southern Tier League190419052
Southern Tri-State League190519051
California State League190419041
Tennessee-Alabama League190419041
Dawson League190419041
Carolina Interstate League190419041
Pennsylvania League190319042
Pacific Coast League190319031
Central Nebraska League190319031
Utah State League190219021
Cumberland Valley League189618961
Iowa State League189518951
Ohio State League189518951
South New Jersey League189518951
New Hampshire State League189518951
Southwest Interstate League189518951
Northern Michigan League189518951
Eastern Iowa League189518951
Eastern Interstate League189518951
Eastern International League189518951
Colorado State League189518951
Northwestern League189518951
Northeastern League189518951
Missouri Valley League189518951
New England Association189518951
Upper Peninsula League189518951
Southern Illinois League189518951
Connecticut State League189518951
Kansas State League189518951
Eastern New England League188518851
NCAA From To Yrs
Little East Conference201720215
Atlantic East Conference201920213
Peach Belt Conference201320219
West Coast Conference2011202111
Gulf South Conference201320219
Northwest Conference201720215
Conference USA2011202111
Wisconsin Intercollegiate Athletic Conference201720215
Centennial Conference201720215
Ivy League2011202111
Colonial Athletic Association2011202111
Missouri Valley Conference2011202111
Southern Conference2011202111
Great American Conference201320219
Pennsylvania State Athletics Conference201320219
Heartland Collegiate Athletic Conference201720215
Southern Collegiate Athletic Conference201720215
Colonial States Athletic Conference201720215
Big 12 Conference2011202111
Northeast Conference2011202111
Atlantic 10 Conference2011202111
Big South Conference2011202111
Great Midwest Athletic Conference201320219
College Conference of Illinois and Wisconsin201720215
Sunshine State Conference201320219
Ohio Athletic Conference201720215
Atlantic Sun Conference2011202111
Patriot League2011202111
New England Small College Athletic Conference201720215
Southeastern Conference2011202111
City University of New York Athletic Conference201720215
NCAA Division II Independents201320219
North Coast Athletic Conference201720215
New England Women's and Men's Athletic Conference201720215
America East Conference2011202111
Presidents' Athletic Conference201720215
American Athletic Conference201420218
Mid-American Conference2011202111
Northeast 10 Conference201320219
Pac-12 Conference2012202110
Pacific West Conference201320219
American Rivers Conference201920213
Mountain East Conference201420218
North Atlantic Conference201720215
Skyline Conference201720215
Summit League2011202111
Commonwealth Coast Conference201720215
Mid-America Intercollegiate Athletic Association201320219
Commonwealth Conference201720215
Atlantic Coast Conference2011202111
Empire 8 Conference201720215
Lone Star Conference201320219
Mountain West Conference2011202111
Ohio Valley Conference2011202111
Minnesota Intercollegiate Conference201720215
University Athletic Association201720215
Midwest Conference201720215
Conference Carolinas201320219
Horizon League2011202111
New England Collegiate Conference201720215
Landmark Conference201720215
USA South Athletic Conference201720215
Big West Conference2011202111
Great Northwest Conference201320219
American Southwest Conference201720215
St. Louis Intercollegiate Athletic Conference201720215
State University of New York Athletic Conference201720215
NCAA Division III Independents201720215
Liberty League201720215
South Atlantic Conference201320219
Northern Sun Conference201320219
Coast-to-Coast Athletic Conference202120211
New Jersey Athletic Conference201720215
North Eastern Athletic Conference201720215
Sun Belt Conference2011202111
Western Athletic Conference2011202111
Big East Conference2011202111
Great Lakes Valley Conference201320219
Massachusetts State Collegiate Athletic Conference201720215
Northern Athletics Conference201720215
Southland Conference2011202111
Rocky Mountain Athletic Conference201320219
Michigan Intercollegiate Conference201720215
Southern Athletic Association201720215
Southwestern Athletic Conference2011202111
Big Ten Conference2011202111
Allegheny Mountain Collegiate Conference201720215
Metro Atlantic Athletic Conference2011202111
Central Atlantic Collegiate Conference201320219
Freedom Conference201720215
California Collegiate Athletic Association201320219
Upper Midwest Athletic Conference201720215
East Coast Conference201320219
Mid-Eastern Athletic Conference2011202111
Great Lakes Intercollegiate Athletic Conference201320219
Southern Intercollegiate Athletic Conference201320219
Southern California Intercollegiate Athletic Confe201720215
Old Dominion Athletic Conference201720215
Great Northeast Conference201720215
Capital Athletic Conference201720204
Heartland Conference201320197
Iowa Intercollegiate Athletic Conference201720182
Central Intercollegiate Athletic Association201320175
NCAA Division I Independents201120177
Great West Conference201120133
West Virginia Intercollegiate Athletic Conference201320131
Pacific 10 Conference201120111
NAIA From To Yrs
Heart of America Athletic Conference201720215
Association of NAIA Independents201720215
Kansas Collegiate Athletic Conference201720215
Mid-South Conference201720215
Sooner Athletic Conference201720215
California Pacific Athletic Conference201720215
Appalachian Athletic Conference201720215
Chicagoland Collegiate Athletic Conference201720215
River States Conference201720215
North Star Athletic Association201720215
Golden State Athletic Conference201720215
Red River Athletic Conference201720215
Wolverine-Hoosier Athletic Conference201720215
American Midwest Conference201720215
Crossroads League201720215
Cascade Collegiate Conference201720215
Southern States Athletic Conference201720215
Great Plains Athletic Conference201720215
The Sun Conference201720215
Collegiate Summer From To Yrs
Atlantic Collegiate Baseball League202120211
Alaska Baseball League201720214
MLB Draft League202120211
South Florida Collegiate Baseball League201720215
Great Lakes Summer Collegiate League201520216
Northwoods League201520217
Valley Baseball League201720214
West Coast League201520216
Hamptons Collegiate League201720214
Western Canadian League201920212
Coastal Plain League201520217
Prospect League201520216
Texas Collegiate League201520216
New York Collegiate League201820213
Expedition League201820214
Southern Collegiate Baseball League202020212
Florida Collegiate Summer League201720215
Sunbelt League201820213
Perfect Game Collegiate Baseball League201520216
Cal Ripken Collegiate Baseball League201520216
Appalachian League202120211
Futures Collegiate Baseball League201720215
Cape Cod League201520216
New England Collegiate Baseball League201520216
Sunflower Collegiate League202020201
Western Major Baseball League201720182
Great West League201820181
No Classification From To Yrs
Mexican Northern League197119711
Global League197019701
Western Canada League195119616
Pan American Association196019601
Southern Alberta League195919591
Canadian-American League195919591
Mexican Northwest League195819581
Western Canada League195819581
Saskatchewan League195319542
Black Baseball1907195040
Ohio Valley League194919491
Manitoba Senior League194919491
Northwest League194719471
Tri-State League192819382
Wisconsin State League1902193611
Coastal Plain League193419363
Eastern Wisconsin League193219352
Sacramento Valley League193419341
East Texas League193419341
Carolina Textile League193419341
Permain Basin League193419341
Wisconsin-Illinois League192619322
Texas Association192819281
Southwestern League192819281
Sunshine League192519251
Midwest League192319253
West Arkansas League192419241
Placer-Nevada League192419241
Western Ohio League192319231
Cotton States League191919212
Florida East Coast League192119211
San Francisco Shipbuilders League191819181
Tri-Copper League191719171
Louisiana State League191519151
Northern Association191419141
Black Baseball190819134
Oahu League191319131
Virginia Mountain League191219121
Southern Texas League191219121
Iowa State League191219121
Missouri-Kansas League189819122
Ohio Valley League189019122
Pennsylvania Railroad Clerks191119111
Iowa State League191119111
Chicago City League191019101
Illinois-Iowa League191019101
Central New York League191019101
Atlantic League190019094
Chicago City League188719097
Eastern Association188219092
Lake Shore League190819081
Union Association190819081
Old Dominion League190819081
Harrisburg City League190819081
Texas Valley League190119085
Texas Valley League190219073
Atlantic League190719071
Northern Independent League190619061
California State League188319067
Northern New York League190019054
Geauga County League190519051
Montana State League188719055
Susquehanna League190419041
Northern New York League190419041
Interstate League188519038
Tennessee-Alabama League190319031
Alabama-Georgia League190319031
North Carolina League190119011
Inter-Mountain League190119011
California League1879190118
Western Interstate League188319015
New England League187719019
North Carolina Association190019001
Provincial League190019001
Utah-Idaho League190019001
Central League188719004
International League188619005
Southern California League188619003
Indiana State League188819005
Southwestern League188718995
Illinois-Iowa League189018994
Ohio State League1884189910
Eastern New York League189918991
Pacific States League189818992
San Joaquin Valley League189618992
Central Pennsylvania League188618985
Canadian League188518987
Kansas State League188718984
New York State League188418986
Pacific Coast League188718982
Maine State League188718985
Colorado State League188518987
Texas-Southern League188118973
Virginia League188518974
Kootenay And Washington League189718971
Washington State League189718971
Arkansas State League189418972
Lehigh Valley League189718971
South New Jersey League189718971
Southeastern Virginia League189718971
Ohio-West Virginia League189618972
Arizona League189718971
Southeastern League189718971
Naugatuck Valley League189618961
San Francisco City League189618961
Southern Illinois League189618961
Michigan State League188618968
Pennyrile League189618961
Schuykill Valley League189518962
Kentucky-Indiana League189618961
Blue Grass League189218962
Northeastern League188718962
Illinois League189618961
Missouri State League189618961
Central Connecticut League189618961
Canadian Association189518951
California Players League189418941
Tri-State League188818945
Monongahela League189418941
Western League188518946
Mississippi State League189318942
Western Ontario League188418942
Canadian Midland League189418941
Eastern League188418947
Merrimac Valley League189418941
Pennsylvania State League189118943
Beaver Valley League189418941
Ohio-Michigan League189318931
Oregon State League189318931
Western Association188918935
Central California League189218921
Kansas-Missouri League189218921
Iron And Oil League188518922
Florida State League189218921
Black Hills League189118922
Mountain League189218921
South Atlantic League189218921
Central New Jersey League189218921
Wisconsin-Michigan League189218921
New York-Pennsylvania League189018912
Pacific Interstate League189118911
Upper Peninsula League188818913
Western New York and Pennsylvania League189018912
Independent187718916
Northwestern League187918918
Puget Sound League188718912
Central New Jersey League189118911
Pacific Northwestern League189118911
Middle States League188918902
Rhode Island League189018901
International Association187718905
Pacific Northwest League189018901
Eastern Iowa League189018901
Pennsylvania State Association188618903
Texas League188818903
Eastern Interstate League188818902
Atlantic Association188918902
New Brunswick League189018901
Central Interstate League188718904
Western New York League188618903
Illinois-Indiana League188918891
Southern League188518894
Western Pennsylvania League188818892
Delaware State League188918891
Hudson River League188518883
New England Interstate League188818881
Connecticut State League188418883
Saginaw Valley League188818881
Central New York League188818881
Interstate Association188318883
New Mexico League188818881
Eastern International League188818881
Central Atlantic League188818881
Northern Michigan League188718871
Nebraska State League188718871
Illinois-Indiana-Iowa League188618861
Gulf League188618861
New Hampshire State League188518862
Georgia State League188418862
Keystone Association188418852
Northeastern Connecticut State League188518851
Southern New England League188518851
Eastern New England League188418841
Massachusetts State Association188418841
Ontario League188418841
Rhode Island Association188418841
Iron & Oil Association188418841
League Alliance187718825
Eastern Championship Association188118811
New California League188118811
Pacific League187818803
National Association187918802
Non-League Players187918791
Humboldt County League187918791
From To Yrs
Coastal Plain League201320142
Prospect League201420141
Cape Cod League201020145
New England Collegiate Baseball League201320142
Northwoods League201320142
Manitoba-Dakota League195619572
Negro From To Yrs
Negro American League195019501

About the Register Data

Historical performance data for professional leagues (affiliated minor leagues, independent minor leagues, fall/winter leagues, and other international leagues) is provided by and licensed from 24-7 Baseball and Chadwick Baseball Bureau. It incorporates the work of many stalwart baseball researchers, including Cliff Blau, Art Cantu, Frank Hamilton, Reed Howard, Kevin Johnson, Bob McConnell, Jack Morris, and Ray Nemec, as well as members of the Minor Leagues Committee of the Society for American Baseball Research.

Perhaps most importantly, it builds upon the seminal work of Ed Washuta, who magnanimously provided the framework to make the whole thing possible.

Minor league Total Zone (Rctch&Rtz, 2005-2009) data provided by Baseballprojection.com and Minorleaguesplits.com.

About the Negro League Data

Sources

This data comes from two sources. 1) The Negro Leagues Researchers and Authors Group put together by the National Baseball Hall of Fame and Museum thanks to a grant provided by Major League Baseball. 2) Gary Ashwill and his collaborators.

The Hall of Fame data is found for the years 1920-1948 and the Ashwill data is found from 1904-1919. Many statistics are incomplete due to ongoing research and/or limitations in published sources, so please be assured that we are aware there are issues with the data and will continue to work with our data providers to improve the data that appears here.

The Hall of Fame dataset

This data is constructed from the best available information as provided by Larry Lester, Wayne Stivers and Dick Clark of the Negro Leagues Researchers and Authors Group. It contains data culled from newspaper boxscores, covering league sanctioned games from 1920 to 1948, which was produced for a study sponsored by Major League Baseball and the National Baseball Hall of Fame and Museum. It reflects totals as compiled by the NLRAG up to 2006. As new credible information is continually unearthed, these numbers will continue to change.

Baseball-Reference and the National Baseball Hall of Fame and Museum would like to acknowledge Major League Baseball for funding this study, along with the Negro Leagues Researchers and Authors Group for their extensive efforts to collect the raw data and construct the most comprehensive database of Negro Leagues Baseball statistics.  Under the direction of Larry Lester, Wayne Stivers and Dick Clark, this database is the largest dataset ever made publically available and we wish to express our gratitude for all their efforts to help rebuild this lost statistical history.

The Ashwill Negro Leagues Database

Playing statistics and biographical data on the Negro leagues (all pre-1920) and early Latin American professional baseball is licensed from and provided by the Negro Leagues Database, a project organized by Gary Ashwill with the participation of many historians of Negro league and Latin American baseball.

The database is a work in progress, and will include more seasons as development continues. It appears in its original form at Seamheads.com.

Playing statistics and biographical data for this portion of our dataset (The Negro Leagues Database) are all copyright 2013 by Gary Ashwill. All rights reserved.

Completeness

Note that our records are missing thousands of players who played in the Negro Leagues for minor league teams, independent teams, barnstorming teams or even Negro major league teams. We will bring their records to light as soon as suitable records are available for those players.

Details about our NLB Data