Single-Season Top 10 Leaders

WAR for Pitchers †
1. Walter Johnson • 1913 15.2
2. Walter Johnson • 1912 14.3
3. Walter Johnson • 1914 11.8
4. Walter Johnson • 1915 11.6
5. Walter Johnson • 1919 10.8
6. Walter Johnson • 1918 10.5
7. Walter Johnson • 1910 10.4
8. Walter Johnson • 1916 10.0
9. Bert Blyleven • 1973 9.7
10. Johan Santana • 2004 8.7
Earned Run Average
1. Walter Johnson • 1913 1.14
2. Walter Johnson • 1918 1.27
3. Walter Johnson • 1910 1.36
4. Walter Johnson • 1912 1.39
5. Walter Johnson • 1919 1.49
6. Walter Johnson • 1915 1.55
7. Walter Johnson • 1908 1.65
8. Bill Burns • 1908 1.7
9. Walter Johnson • 1914 1.72
10. Walter Johnson • 1911 1.9
Walter Johnson • 1916 1.9
Wins
1. Walter Johnson • 1913 36
2. Walter Johnson • 1912 33
3. Walter Johnson • 1914 28
4. Walter Johnson • 1915 27
5. General Crowder • 1932 26
6. Walter Johnson • 1910 25
Walter Johnson • 1911 25
Walter Johnson • 1916 25
Jim Kaat • 1966 25
10. General Crowder • 1933 24
Bob Groom • 1912 24
Jim Perry • 1970 24
Frank Viola • 1988 24
Win-Loss %
1. Kenta Maeda • 2020 .857
2. Walter Johnson • 1913 .837
3. Stan Coveleski • 1925 .800
Firpo Marberry • 1931 .800
5. Frank Viola • 1988 .774
6. Bill Campbell • 1976 .773
7. Jim Perry • 1969 .769
Johan Santana • 2004 .769
9. Walter Johnson • 1924 .767
10. Johan Santana • 2006 .760
Walks & Hits per IP
1. Kenta Maeda • 2020 0.750
2. Walter Johnson • 1913 0.780
3. Walter Johnson • 1912 0.908
4. Walter Johnson • 1910 0.914
5. Johan Santana • 2004 0.921
6. Bill Burns • 1908 0.933
Walter Johnson • 1915 0.933
8. Walter Johnson • 1918 0.954
9. Walter Johnson • 1908 0.964
10. Walter Johnson • 1917 0.969
Hits per 9 IP
1. Kenta Maeda • 2020 5.400
2. Walter Johnson • 1913 6.035
3. Johan Santana • 2004 6.158
4. Walter Johnson • 1912 6.317
5. Walter Johnson • 1910 6.373
6. Dave Boswell • 1966 6.378
7. Dave Boswell • 1967 6.548
8. Walter Johnson • 1918 6.653
9. Harry Harper • 1918 6.713
10. Joe Engel • 1913 6.777
Bases On Balls per 9 IP
1. Carlos Silva • 2005 0.430
2. Phil Hughes • 2014 0.687
3. Bill Burns • 1908 0.988
Walter Johnson • 1913 0.988
5. Brad Radke • 2005 1.032
6. Brad Radke • 2001 1.035
7. Brad Radke • 2004 1.065
8. Al Orth • 1902 1.111
9. Jim Merritt • 1967 1.186
10. Brad Radke • 2003 1.187
Strikeouts per 9 IP
1. Pablo López • 2023 10.856
2. Kenta Maeda • 2020 10.800
3. Johan Santana • 2004 10.461
4. José Berríos • 2020 9.714
5. Johan Santana • 2007 9.658
6. Bailey Ober • 2024 9.621
7. Pablo López • 2024 9.615
8. José Berríos • 2018 9.452
9. Francisco Liriano • 2010 9.438
10. Johan Santana • 2006 9.437
Games Played
1. Mike Marshall • 1979 90
2. Eddie Guardado • 1996 83
3. J.C. Romero • 2002 81
4. Eddie Guardado • 1998 79
Matt Guerrier • 2009 79
6. Bill Campbell • 1976 78
7. Juan Rincón • 2004 77
Mike Trombley • 1998 77
9. Matt Guerrier • 2008 76
Bob Wells • 1999 76
Bob Wells • 2000 76
Saves
1. Joe Nathan • 2009 47
2. Eddie Guardado • 2002 45
3. Joe Nathan • 2004 44
4. Joe Nathan • 2005 43
5. Rick Aguilera • 1991 42
Jeff Reardon • 1988 42
7. Rick Aguilera • 1992 41
Eddie Guardado • 2003 41
9. Joe Nathan • 2008 39
10. Rick Aguilera • 1998 38
Innings Pitched
1. Walter Johnson • 1914 371.2
2. Walter Johnson • 1910 370.0
3. Walter Johnson • 1916 369.2
4. Walter Johnson • 1912 369.0
5. Casey Patten • 1904 357.2
6. Walter Johnson • 1913 346.0
7. Walter Johnson • 1915 336.2
8. General Crowder • 1932 327.0
9. Walter Johnson • 1917 326.0
Walter Johnson • 1918 326.0
Strikeouts
1. Walter Johnson • 1910 313
2. Walter Johnson • 1912 303
3. Johan Santana • 2004 265
4. Bert Blyleven • 1973 258
5. Bert Blyleven • 1974 249
6. Johan Santana • 2006 245
7. Walter Johnson • 1913 243
8. Johan Santana • 2005 238
9. Johan Santana • 2007 235
10. Dean Chance • 1968 234
Pablo López • 2023 234
Games Started
1. Walter Johnson • 1910 42
Jim Kaat • 1965 42
3. Jim Kaat • 1966 41
4. Bert Blyleven • 1973 40
Bob Groom • 1912 40
Walter Johnson • 1914 40
Jim Perry • 1970 40
8. Dean Chance • 1967 39
Dean Chance • 1968 39
General Crowder • 1932 39
Dave Goltz • 1977 39
Mudcat Grant • 1965 39
Walter Johnson • 1915 39
Casey Patten • 1904 39
Jim Perry • 1971 39
Complete Games
1. Walter Johnson • 1910 38
2. Casey Patten • 1904 37
3. Walter Johnson • 1911 36
Walter Johnson • 1916 36
Al Orth • 1902 36
6. Walter Johnson • 1915 35
7. Bill Carrick • 1901 34
Walter Johnson • 1912 34
9. Walter Johnson • 1914 33
Casey Patten • 1902 33
Home Runs
1. Bert Blyleven • 1986 50
2. Bert Blyleven • 1987 46
3. Pedro Ramos • 1957 43
4. Brad Radke • 1996 40
5. Jim Perry • 1971 39
Pedro Ramos • 1961 39
7. Pedro Ramos • 1958 38
Carlos Silva • 2006 38
9. Frank Viola • 1986 37
10. Eric Milton • 2000 35
Eric Milton • 2001 35
Mike Smithson • 1984 35
Bases on Balls
1. Bobo Newsom • 1936 146
2. Ken Chase • 1940 143
3. Jim Shaw • 1914 137
4. Eric Erickson • 1920 128
5. Jim Hughes • 1975 127
6. Jimmie DeShong • 1937 124
7. Jim Shaw • 1917 123
8. Walt Masterson • 1948 122
9. Joe Boehling • 1915 119
10. Rich Robertson • 1996 116
Hits
1. Bill Carrick • 1901 367
Al Orth • 1902 367
Casey Patten • 1904 367
4. Bill Carrick • 1902 344
5. Casey Patten • 1902 331
6. Wyatt Lee • 1901 328
Dutch Leonard • 1940 328
8. Al Orth • 1903 326
9. General Crowder • 1932 319
Happy Townsend • 1904 319
Strikeouts / Base On Balls
1. Phil Hughes • 2014 11.625
2. Kenta Maeda • 2020 8
3. Carlos Silva • 2005 7.889
4. Walter Johnson • 1913 6.395
5. Brad Radke • 2004 5.5
6. Jim Merritt • 1967 5.367
7. Johan Santana • 2005 5.289
8. Brad Radke • 2001 5.269
9. Johan Santana • 2006 5.213
10. Brad Radke • 2005 5.087
Home Runs per 9 IP
1. Walter Johnson • 1910 0.024
2. Walter Johnson • 1915 0.027
3. Cy Falkenberg • 1906 0.030
Walter Johnson • 1909 0.030
5. Jim Shaw • 1917 0.034
6. Stan Coveleski • 1926 0.037
Harry Harper • 1918 0.037
8. Dolly Gray • 1909 0.041
9. Doc Ayers • 1915 0.043
Bert Gallia • 1917 0.043
Tom Hughes • 1907 0.043
Losses
1. Bob Groom • 1909 26
Happy Townsend • 1904 26
3. Walter Johnson • 1909 25
4. Beany Jacobson • 1904 23
Casey Patten • 1904 23
6. Bill Carrick • 1901 22
Al Orth • 1903 22
Casey Patten • 1903 22
9. Harry Harper • 1919 21
Casey Patten • 1905 21
Earned Runs
1. Jimmie DeShong • 1937 144
2. Al Orth • 1902 143
3. Bill Carrick • 1902 139
4. Bobo Newsom • 1936 137
5. Bill Carrick • 1901 135
Al Orth • 1903 135
Casey Patten • 1902 135
8. Earl Whitehill • 1935 133
9. General Crowder • 1933 132
10. LaTroy Hawkins • 1999 129
Wild Pitches
1. Walter Johnson • 1910 21
2. Happy Townsend • 1904 19
3. Walter Johnson • 1911 17
4. Dave Goltz • 1976 15
Jack Morris • 1991 15
Johan Santana • 2002 15
Mike Smithson • 1986 15
8. Héctor Carrasco • 2000 14
Cy Falkenberg • 1906 14
Walter Johnson • 1914 14
Hit By Pitch
1. Bill Carrick • 1901 20
Walter Johnson • 1923 20
Casey Patten • 1904 20
4. Walter Johnson • 1915 19
5. Jim Kaat • 1962 18
6. Casey Patten • 1901 17
7. Bert Blyleven • 1988 16
Walter Johnson • 1912 16
9. Tom Hughes • 1913 15
Walter Johnson • 1909 15
Mike Smithson • 1985 15
Happy Townsend • 1905 15
Batters Faced
1. Casey Patten • 1904 1478
2. Bill Carrick • 1901 1415
3. Walter Johnson • 1912 1413
4. Walter Johnson • 1916 1410
5. Walter Johnson • 1914 1406
6. Walter Johnson • 1910 1367
7. General Crowder • 1932 1356
8. Al Orth • 1902 1334
9. Bert Blyleven • 1973 1321
10. Walter Johnson • 1911 1306
Games Finished
1. Mike Marshall • 1979 84
2. Bill Campbell • 1976 68
3. Rick Aguilera • 1998 64
4. Doug Corbett • 1980 63
Joe Nathan • 2004 63
6. Eddie Guardado • 2002 62
Joe Nathan • 2009 62
8. Rick Aguilera • 1992 61
Rick Aguilera • 1993 61
Ron Davis • 1983 61
Joe Nathan • 2006 61
Jeff Reardon • 1989 61
Adjusted ERA+
1. Walter Johnson • 1913 259
2. Walter Johnson • 1912 243
3. Walter Johnson • 1919 215
4. Walter Johnson • 1918 214
5. Walter Johnson • 1915 191
6. Walter Johnson • 1910 183
7. Johan Santana • 2004 182
8. Walter Johnson • 1911 173
9. Allan Anderson • 1988 166
10. Walter Johnson • 1914 164
Fielding Independent Pitching
1. Walter Johnson • 1910 1.38
2. Walter Johnson • 1908 1.60
3. Walter Johnson • 1916 1.82
4. Charlie Smith • 1907 1.86
5. Walter Johnson • 1913 1.90
6. Walter Johnson • 1915 1.91
7. Tom Hughes • 1908 1.95
8. Walter Johnson • 1917 1.98
9. Walter Johnson • 1914 2.02
10. Walter Johnson • 1912 2.03
Walter Johnson • 1918 2.03
Adj. Pitching Runs
1. Walter Johnson • 1912 76
2. Walter Johnson • 1913 71
3. Johan Santana • 2004 54
4. Walter Johnson • 1915 51
Walter Johnson • 1919 51
6. Walter Johnson • 1918 49
7. Bert Blyleven • 1973 47
Walter Johnson • 1914 47
9. Frank Viola • 1987 46
10. Johan Santana • 2006 45
Adj. Pitching Wins
1. Walter Johnson • 1912 8.4
2. Walter Johnson • 1913 8.3
3. Walter Johnson • 1918 6.1
4. Walter Johnson • 1915 5.8
Walter Johnson • 1919 5.8
6. Walter Johnson • 1914 5.5
Johan Santana • 2004 5.5
8. Bert Blyleven • 1973 5.2
Walter Johnson • 1910 5.2
10. Frank Viola • 1987 4.7
Base-Out Runs Saved (RE24) †
1. Walter Johnson • 1912 103.68
2. Johan Santana • 2004 62.46
3. Walter Johnson • 1918 60.05
4. Walter Johnson • 1919 56.87
5. Walter Johnson • 1924 53.60
6. Bert Blyleven • 1973 50.62
7. Johan Santana • 2006 49.87
8. Firpo Marberry • 1929 49.43
9. Frank Viola • 1987 47.74
10. Stan Coveleski • 1925 45.96
Win Probability Added (WPA) †
1. Walter Johnson • 1912 13.1
2. Walter Johnson • 1918 10.2
3. Doug Corbett • 1980 7.8
4. Walter Johnson • 1919 7.1
5. George Mogridge • 1921 5.9
6. Joe Nathan • 2004 5.8
7. Johan Santana • 2004 5.7
8. Garland Braxton • 1927 5.5
Stan Coveleski • 1925 5.5
Walter Johnson • 1913 5.5
Roger Wolff • 1945 5.5
Sit. Wins Saved (WPA/LI) †
1. Walter Johnson • 1912 10.6
2. Walter Johnson • 1918 6.9
3. Walter Johnson • 1919 6.3
Johan Santana • 2004 6.3
5. Walter Johnson • 1924 5.3
6. Johan Santana • 2006 5.1
7. Johan Santana • 2005 4.8
8. Walter Johnson • 1917 4.7
9. Bert Blyleven • 1973 4.6
10. Firpo Marberry • 1929 4.5
Roger Wolff • 1945 4.5
Championship WPA (cWPA) †
1. Walter Johnson • 1924 20.3
2. Roger Wolff • 1945 18.2
3. Tom Zachary • 1924 17.5
4. Walter Johnson • 1912 16.5
5. Stan Coveleski • 1925 16.4
6. Walter Johnson • 1925 15.7
7. Firpo Marberry • 1924 13.0
8. Frank Viola • 1984 10.4
9. Walter Johnson • 1918 10.2
10. Earl Whitehill • 1933 9.1
Base-Out Wins Saved (REW) †
1. Walter Johnson • 1912 11.7
2. Walter Johnson • 1918 7.7
3. Walter Johnson • 1919 6.6
4. Johan Santana • 2004 6.5
5. Walter Johnson • 1924 5.6
6. Bert Blyleven • 1973 5.5
7. Johan Santana • 2006 5.2
8. Firpo Marberry • 1929 4.9
9. Frank Viola • 1987 4.8
10. Stan Coveleski • 1925 4.7
Johan Santana • 2005 4.7

Data Notes