Single-Season Top 10 Leaders

WAR for Pitchers †
1. John Clarkson • 1887 14.9
2. John Clarkson • 1885 12.9
3. Grover Alexander • 1920 12.0
4. Clark Griffith • 1898 10.7
5. Dick Ellsworth • 1963 10.2
6. Bill Hutchison • 1891 10.1
Fergie Jenkins • 1971 10.1
8. Mordecai Brown • 1909 9.5
Rick Reuschel • 1977 9.5
10. Al Spalding • 1876 9.4
Jack Taylor • 1902 9.4
Earned Run Average
1. Mordecai Brown • 1906 1.04
2. Jack Pfiester • 1907 1.15
3. Carl Lundgren • 1907 1.17
4. Jack Taylor • 1902 1.29
5. Mordecai Brown • 1909 1.31
6. Mordecai Brown • 1907 1.39
7. Orval Overall • 1909 1.42
Ed Reulbach • 1905 1.42
9. Mordecai Brown • 1908 1.47
10. Jack Pfiester • 1906 1.51
Wins
1. John Clarkson • 1885 53
2. Al Spalding • 1876 47
3. Bill Hutchison • 1891 44
4. Larry Corcoran • 1880 43
5. Bill Hutchison • 1890 41
6. John Clarkson • 1887 38
7. John Clarkson • 1886 36
Bill Hutchison • 1892 36
9. Larry Corcoran • 1884 35
10. Larry Corcoran • 1883 34
Win-Loss %
1. Javier Assad • 2024 1.000
Shota Imanaga • 2024 1.000
3. Rick Sutcliffe • 1984 .941
4. Fred Goldsmith • 1880 .875
5. King Cole • 1910 .833
Jim McCormick • 1885 .833
7. Ed Reulbach • 1906 .826
8. Mordecai Brown • 1906 .813
9. Ed Reulbach • 1907 .810
10. Bert Humphries • 1913 .800
Walks & Hits per IP
1. Mordecai Brown • 1908 0.842
2. Jake Arrieta • 2015 0.865
3. Mordecai Brown • 1909 0.873
4. Grover Alexander • 1919 0.928
5. Mordecai Brown • 1906 0.934
6. Larry Corcoran • 1880 0.938
7. Jack Pfiester • 1906 0.941
8. Mordecai Brown • 1907 0.944
9. Warren Hacker • 1952 0.946
10. John Clarkson • 1885 0.953
Jack Taylor • 1902 0.953
Hits per 9 IP
1. Ed Reulbach • 1906 5.326
2. Carl Lundgren • 1907 5.652
3. Jake Arrieta • 2015 5.895
4. Mordecai Brown • 1908 6.166
5. Jack Pfiester • 1906 6.211
6. Jake Arrieta • 2016 6.294
7. Kerry Wood • 1998 6.318
8. Ed Reulbach • 1905 6.418
9. Mordecai Brown • 1906 6.425
10. Orval Overall • 1909 6.442
Bases On Balls per 9 IP
1. Al Spalding • 1876 0.443
2. Terry Larkin • 1879 0.526
3. Terry Larkin • 1878 0.551
4. Fred Goldsmith • 1880 0.770
5. Fred Goldsmith • 1882 0.844
6. Grover Alexander • 1923 0.885
Kyle Hendricks • 2020 0.885
8. George Bradley • 1877 0.891
9. Fred Goldsmith • 1883 0.916
10. Dennis Eckersley • 1985 1.010
Strikeouts per 9 IP
1. Kerry Wood • 1998 12.582
2. Yu Darvish • 2019 11.535
3. Kerry Wood • 2003 11.346
4. Kerry Wood • 2001 11.203
5. Yu Darvish • 2020 11.013
6. Mark Prior • 2003 10.434
7. Mark Prior • 2005 10.152
8. Matt Clement • 2004 9.448
9. Matt Clement • 2002 9.439
10. Jake Arrieta • 2015 9.275
Jeff Samardzija • 2012 9.275
Games Played
1. Ted Abernathy • 1965 84
Bob Howry • 2006 84
Dick Tidrow • 1980 84
4. Bill Campbell • 1983 82
Jeff Fassero • 2001 82
Carlos Marmól • 2008 82
7. Rod Beck • 1998 81
8. Shawn Camp • 2012 80
Steve Cishek • 2018 80
Sean Marshall • 2010 80
Saves
1. Randy Myers • 1993 53
2. Rod Beck • 1998 51
3. Carlos Marmól • 2010 38
Randy Myers • 1995 38
5. Bruce Sutter • 1979 37
6. Lee Smith • 1987 36
Mitch Williams • 1989 36
8. Carlos Marmól • 2011 34
Kerry Wood • 2008 34
10. Joe Borowski • 2003 33
Ryan Dempster • 2005 33
Kevin Gregg • 2013 33
Lee Smith • 1984 33
Lee Smith • 1985 33
Innings Pitched
1. John Clarkson • 1885 623.0
2. Bill Hutchison • 1892 622.0
3. Bill Hutchison • 1890 603.0
4. Bill Hutchison • 1891 561.0
5. Larry Corcoran • 1880 536.1
6. Al Spalding • 1876 528.2
7. John Clarkson • 1887 523.0
8. Larry Corcoran • 1884 516.2
9. Terry Larkin • 1879 513.1
10. Terry Larkin • 1878 506.0
Strikeouts
1. Bill Hutchison • 1892 314
2. John Clarkson • 1886 313
3. John Clarkson • 1885 308
4. Bill Hutchison • 1890 289
5. Fergie Jenkins • 1970 274
6. Fergie Jenkins • 1969 273
7. Larry Corcoran • 1884 272
8. Larry Corcoran • 1880 268
9. Kerry Wood • 2003 266
10. Fergie Jenkins • 1971 263
Games Started
1. John Clarkson • 1885 70
Bill Hutchison • 1892 70
3. Bill Hutchison • 1890 66
4. Larry Corcoran • 1880 60
Al Spalding • 1876 60
6. John Clarkson • 1887 59
Larry Corcoran • 1884 59
8. Bill Hutchison • 1891 58
Terry Larkin • 1879 58
10. Terry Larkin • 1878 56
Complete Games
1. John Clarkson • 1885 68
2. Bill Hutchison • 1892 67
3. Bill Hutchison • 1890 65
4. Larry Corcoran • 1880 57
Larry Corcoran • 1884 57
Terry Larkin • 1879 57
7. John Clarkson • 1887 56
Bill Hutchison • 1891 56
Terry Larkin • 1878 56
10. Al Spalding • 1876 53
Home Runs
1. Warren Hacker • 1955 38
2. John Lackey • 2017 36
Jon Lieber • 2000 36
4. Larry Corcoran • 1884 35
Warren Hacker • 1953 35
Fergie Jenkins • 1973 35
Greg Maddux • 2004 35
Kevin Tapani • 2000 35
9. Dick Ellsworth • 1964 34
10. Yu Darvish • 2019 33
Bases on Balls
1. Bill Hutchison • 1890 199
2. Bill Hutchison • 1892 190
3. Sam Jones • 1955 185
4. Willie McGill • 1893 181
5. Bill Hutchison • 1891 178
6. Bill Hutchison • 1893 156
7. Larry Cheney • 1914 140
Bill Hutchison • 1894 140
9. Danny Friend • 1896 139
10. Adonis Terry • 1895 131
Hits
1. Bill Hutchison • 1892 571
2. Al Spalding • 1876 542
3. Terry Larkin • 1879 514
4. John Clarkson • 1887 513
5. Terry Larkin • 1878 511
6. Bill Hutchison • 1891 508
7. Bill Hutchison • 1890 505
8. John Clarkson • 1885 497
9. Larry Corcoran • 1883 483
10. Larry Corcoran • 1884 473
Strikeouts / Base On Balls
1. Kyle Hendricks • 2020 8
2. Fergie Jenkins • 1971 7.108
3. Yu Darvish • 2020 6.643
4. Dennis Eckersley • 1985 6.158
5. Terry Larkin • 1878 5.258
6. Fred Goldsmith • 1880 5
7. Jake Arrieta • 2015 4.917
8. Mark Prior • 2003 4.9
9. Justin Steele • 2023 4.889
10. Terry Larkin • 1879 4.733
Home Runs per 9 IP
1. Mordecai Brown • 1909 0.026
2. Clark Griffith • 1898 0.028
3. Mordecai Brown • 1908 0.029
Jake Weimer • 1904 0.029
5. Ed Reulbach • 1905 0.031
Hippo Vaughn • 1914 0.031
7. Mordecai Brown • 1906 0.032
Orval Overall • 1909 0.032
9. Lefty Tyler • 1918 0.033
10. Ed Reulbach • 1909 0.034
Pop Williams • 1902 0.034
Losses
1. Bill Hutchison • 1892 36
2. Terry Larkin • 1878 26
3. Bill Hutchison • 1890 25
4. Bill Hutchison • 1893 24
5. George Bradley • 1877 23
Larry Corcoran • 1884 23
Tom Hughes • 1901 23
Terry Larkin • 1879 23
9. Bill Bonham • 1974 22
Dick Ellsworth • 1966 22
Earned Runs
1. Bill Hutchison • 1892 191
2. Bill Hutchison • 1894 187
3. Bill Hutchison • 1893 184
4. Bill Hutchison • 1890 181
5. John Clarkson • 1887 179
6. Bill Hutchison • 1891 175
7. Adonis Terry • 1895 166
8. Guy Bush • 1930 155
Willie McGill • 1893 155
10. Clark Griffith • 1895 154
Wild Pitches
1. Mark Baldwin • 1887 41
2. George Bradley • 1877 39
3. Terry Larkin • 1878 37
4. Jocko Flynn • 1886 28
5. Larry Corcoran • 1881 27
Larry Corcoran • 1884 27
Bill Hutchison • 1890 27
8. Larry Cheney • 1914 26
9. John Clarkson • 1887 25
Bill Hutchison • 1891 25
Hit By Pitch
1. Danny Friend • 1896 39
2. Jimmy Callahan • 1899 24
3. Jimmy Callahan • 1900 22
Clark Griffith • 1895 22
Jack Taylor • 1899 22
6. Kerry Wood • 2003 21
7. Clark Griffith • 1898 20
Carlos Zambrano • 2004 20
9. Pat Luby • 1891 19
10. Ned Garvin • 1900 18
Ed Reulbach • 1905 18
Walter Thornton • 1898 18
Batters Faced
1. Bill Hutchison • 1892 2639
2. Bill Hutchison • 1890 2506
3. John Clarkson • 1885 2487
4. Bill Hutchison • 1891 2371
5. Al Spalding • 1876 2219
6. John Clarkson • 1887 2183
7. Larry Corcoran • 1884 2180
8. Terry Larkin • 1879 2176
9. Larry Corcoran • 1880 2133
10. Terry Larkin • 1878 2105
Games Finished
1. Rod Beck • 1998 70
Carlos Marmól • 2010 70
3. Randy Myers • 1993 69
4. Ryan Dempster • 2006 64
5. Ted Abernathy • 1965 62
6. Carlos Marmól • 2011 61
Mitch Williams • 1989 61
8. Phil Regan • 1968 60
9. Joe Borowski • 2003 59
Lee Smith • 1984 59
Lee Smith • 1986 59
Adjusted ERA+
1. Mordecai Brown • 1906 253
2. Yu Darvish • 2020 224
3. Jake Arrieta • 2015 215
4. Jack Pfiester • 1907 214
5. Carl Lundgren • 1907 211
6. Ed Reulbach • 1905 209
7. Jack Taylor • 1902 206
8. Kyle Hendricks • 2016 196
9. Mordecai Brown • 1909 193
10. Clark Griffith • 1898 192
Fielding Independent Pitching
1. Orval Overall • 1909 1.75
2. Mordecai Brown • 1909 1.78
3. Orval Overall • 1908 1.86
4. Mordecai Brown • 1908 1.87
5. Mordecai Brown • 1907 1.97
6. Fred Goldsmith • 1880 2.06
7. Mordecai Brown • 1906 2.08
8. Hippo Vaughn • 1917 2.09
9. Grover Alexander • 1919 2.11
10. Jack Pfiester • 1907 2.14
Adj. Pitching Runs
1. John Clarkson • 1887 71
2. John Clarkson • 1885 69
3. Clark Griffith • 1898 60
4. Bill Hutchison • 1890 57
5. Jake Arrieta • 2015 52
6. Grover Alexander • 1920 51
7. Ed Reulbach • 1905 48
8. Jack Taylor • 1902 47
9. Lon Warneke • 1932 46
10. Mordecai Brown • 1906 45
Mordecai Brown • 1909 45
Adj. Pitching Wins
1. John Clarkson • 1885 6.9
2. John Clarkson • 1887 6.3
3. Clark Griffith • 1898 6.1
4. Jake Arrieta • 2015 5.9
5. Grover Alexander • 1920 5.8
6. Mordecai Brown • 1906 5.5
Ed Reulbach • 1905 5.5
Jack Taylor • 1902 5.5
9. Mordecai Brown • 1909 5.3
Dick Ellsworth • 1963 5.3
Bill Hutchison • 1890 5.3
Base-Out Runs Saved (RE24) †
1. Grover Alexander • 1920 62.54
2. Bill Lee • 1938 54.29
3. Jake Arrieta • 2015 53.42
4. Dick Ellsworth • 1963 53.39
5. Lon Warneke • 1932 53.32
6. Greg Maddux • 1992 48.47
7. Rick Reuschel • 1977 47.51
8. Sheriff Blake • 1928 47.09
9. Lon Warneke • 1933 45.56
10. Charlie Root • 1929 45.32
Win Probability Added (WPA) †
1. Grover Alexander • 1920 8.6
2. Bill Lee • 1938 6.8
3. Hippo Vaughn • 1918 6.3
4. Hippo Vaughn • 1919 6.2
5. Dick Ellsworth • 1963 5.9
6. Jake Arrieta • 2015 5.7
7. Rick Reuschel • 1977 5.5
Lon Warneke • 1932 5.5
9. Sheriff Blake • 1928 5.4
Lefty Tyler • 1918 5.4
Sit. Wins Saved (WPA/LI) †
1. Grover Alexander • 1920 5.9
2. Jake Arrieta • 2015 5.7
3. Fergie Jenkins • 1970 5.2
4. Dick Ellsworth • 1963 5.1
Greg Maddux • 1992 5.1
6. Grover Alexander • 1919 5.0
7. Hippo Vaughn • 1918 4.7
8. Sheriff Blake • 1928 4.5
Kyle Hendricks • 2016 4.5
10. Lon Warneke • 1932 4.4
Championship WPA (cWPA) †
1. Bill Lee • 1938 21.4
2. Hippo Vaughn • 1918 19.9
3. Pat Malone • 1930 19.3
4. Lon Warneke • 1935 18.3
5. Guy Bush • 1929 16.4
6. Lon Warneke • 1932 15.6
7. Larry French • 1935 15.0
8. Hank Wyse • 1945 12.9
9. Charlie Root • 1937 12.6
10. Sheriff Blake • 1928 11.2
Base-Out Wins Saved (REW) †
1. Grover Alexander • 1920 7.3
2. Jake Arrieta • 2015 6.2
Dick Ellsworth • 1963 6.2
4. Bill Lee • 1938 5.9
5. Lon Warneke • 1932 5.8
6. Greg Maddux • 1992 5.7
7. Lon Warneke • 1933 5.3
8. Grover Alexander • 1919 5.1
Sheriff Blake • 1928 5.1
Hippo Vaughn • 1918 5.1

Data Notes