Single-Season Top 10 Leaders

WAR for Pitchers †
1. Walter Johnson1913 15.1
2. Walter Johnson1912 13.2
3. Walter Johnson1914 11.7
4. Walter Johnson1915 11.5
5. Walter Johnson1919 10.6
6. Walter Johnson1910 10.4
Walter Johnson1918 10.4
8. Walter Johnson1916 9.9
9. Bert Blyleven1973 9.8
10. Johan Santana2004 8.7
Earned Run Average
1. Walter Johnson1913 1.14
2. Walter Johnson1918 1.27
3. Walter Johnson1910 1.36
4. Walter Johnson1912 1.39
5. Walter Johnson1919 1.49
6. Walter Johnson1915 1.55
7. Walter Johnson1908 1.65
8. Bill Burns1908 1.70
9. Walter Johnson1914 1.72
10. Walter Johnson1911 1.90
Walter Johnson1916 1.90
Wins
1. Walter Johnson1913 36
2. Walter Johnson1912 33
3. Walter Johnson1914 28
4. Walter Johnson1915 27
5. General Crowder1932 26
6. Walter Johnson1910 25
Walter Johnson1911 25
Walter Johnson1916 25
Jim Kaat1966 25
10. General Crowder1933 24
Bob Groom1912 24
Jim Perry1970 24
Frank Viola1988 24
Win-Loss %
1. Kenta Maeda2020 .857
2. Walter Johnson1913 .837
3. Stan Coveleski1925 .800
Firpo Marberry1931 .800
5. Frank Viola1988 .774
6. Bill Campbell1976 .773
7. Jim Perry1969 .769
Johan Santana2004 .769
9. Walter Johnson1924 .767
10. Johan Santana2006 .760
Walks & Hits per IP
1. Kenta Maeda2020 0.750
2. Walter Johnson1913 0.780
3. Walter Johnson1912 0.908
4. Walter Johnson1910 0.914
5. Johan Santana2004 0.921
6. Bill Burns1908 0.933
Walter Johnson1915 0.933
8. Walter Johnson1918 0.954
9. Walter Johnson1908 0.964
10. Walter Johnson1917 0.969
Hits per 9 IP
1. Kenta Maeda2020 5.400
2. Walter Johnson1913 6.035
3. Johan Santana2004 6.158
4. Walter Johnson1912 6.317
5. Walter Johnson1910 6.373
6. Dave Boswell1966 6.378
7. Dave Boswell1967 6.548
8. Walter Johnson1918 6.653
9. Harry Harper1918 6.713
10. Joe Engel1913 6.777
Bases On Balls per 9 IP
1. Carlos Silva2005 0.430
2. Phil Hughes2014 0.687
3. Bill Burns1908 0.988
Walter Johnson1913 0.988
5. Brad Radke2005 1.032
6. Brad Radke2001 1.035
7. Brad Radke2004 1.065
8. Al Orth1902 1.111
9. Jim Merritt1967 1.186
10. Brad Radke2003 1.187
Strikeouts per 9 IP
1. Kenta Maeda2020 10.800
2. Johan Santana2004 10.461
3. Jose Berrios2020 9.714
4. Johan Santana2007 9.658
5. Jose Berrios2018 9.452
6. Francisco Liriano2010 9.438
7. Johan Santana2006 9.437
8. Johan Santana2005 9.246
9. Dave Boswell1966 9.195
10. Jake Odorizzi2018 8.872
Games Played
1. Mike Marshall1979 90
2. Eddie Guardado1996 83
3. J.C. Romero2002 81
4. Eddie Guardado1998 79
Matt Guerrier2009 79
6. Bill Campbell1976 78
7. Juan Rincon2004 77
Mike Trombley1998 77
9. Matt Guerrier2008 76
Bob Wells1999 76
Bob Wells2000 76
Saves
1. Joe Nathan2009 47
2. Eddie Guardado2002 45
3. Joe Nathan2004 44
4. Joe Nathan2005 43
5. Rick Aguilera1991 42
Jeff Reardon1988 42
7. Rick Aguilera1992 41
Eddie Guardado2003 41
9. Joe Nathan2008 39
10. Rick Aguilera1998 38
Innings Pitched
1. Walter Johnson1914 371.2
2. Walter Johnson1910 370.0
3. Walter Johnson1916 369.2
4. Walter Johnson1912 369.0
5. Casey Patten1904 357.2
6. Walter Johnson1913 346.0
7. Walter Johnson1915 336.2
8. General Crowder1932 327.0
9. Walter Johnson1917 326.0
Walter Johnson1918 326.0
Strikeouts
1. Walter Johnson1910 313
2. Walter Johnson1912 303
3. Johan Santana2004 265
4. Bert Blyleven1973 258
5. Bert Blyleven1974 249
6. Johan Santana2006 245
7. Walter Johnson1913 243
8. Johan Santana2005 238
9. Johan Santana2007 235
10. Dean Chance1968 234
Games Started
1. Walter Johnson1910 42
Jim Kaat1965 42
3. Jim Kaat1966 41
4. Bert Blyleven1973 40
Bob Groom1912 40
Walter Johnson1914 40
Jim Perry1970 40
8. Dean Chance1967 39
Dean Chance1968 39
General Crowder1932 39
Dave Goltz1977 39
Mudcat Grant1965 39
Walter Johnson1915 39
Casey Patten1904 39
Jim Perry1971 39
Complete Games
1. Walter Johnson1910 38
2. Casey Patten1904 37
3. Walter Johnson1911 36
Walter Johnson1916 36
Al Orth1902 36
6. Walter Johnson1915 35
7. Bill Carrick1901 34
Walter Johnson1912 34
9. Walter Johnson1914 33
Casey Patten1902 33
Home Runs
1. Bert Blyleven1986 50
2. Bert Blyleven1987 46
3. Pedro Ramos1957 43
4. Brad Radke1996 40
5. Jim Perry1971 39
Pedro Ramos1961 39
7. Pedro Ramos1958 38
Carlos Silva2006 38
9. Frank Viola1986 37
10. Eric Milton2000 35
Eric Milton2001 35
Mike Smithson1984 35
Bases on Balls
1. Bobo Newsom1936 146
2. Ken Chase1940 143
3. Jim Shaw1914 137
4. Eric Erickson1920 128
5. Jim Hughes1975 127
6. Jimmie DeShong1937 124
7. Jim Shaw1917 123
8. Walt Masterson1948 122
9. Joe Boehling1915 119
10. Rich Robertson1996 116
Hits
1. Bill Carrick1901 367
Al Orth1902 367
Casey Patten1904 367
4. Bill Carrick1902 344
5. Casey Patten1902 331
6. Watty Lee1901 328
Dutch Leonard1940 328
8. Al Orth1903 326
9. General Crowder1932 319
Happy Townsend1904 319
Strikeouts / Base On Balls
1. Phil Hughes2014 11.625
2. Kenta Maeda2020 8.000
3. Carlos Silva2005 7.889
4. Walter Johnson1913 6.395
5. Brad Radke2004 5.500
6. Jim Merritt1967 5.367
7. Johan Santana2005 5.289
8. Brad Radke2001 5.269
9. Johan Santana2006 5.213
10. Brad Radke2005 5.087
Home Runs per 9 IP
1. Walter Johnson1910 0.024
2. Walter Johnson1915 0.027
3. Cy Falkenberg1906 0.030
Walter Johnson1909 0.030
5. Jim Shaw1917 0.034
6. Stan Coveleski1926 0.037
Harry Harper1918 0.037
8. Dolly Gray1909 0.041
9. Doc Ayers1915 0.043
Bert Gallia1917 0.043
Tom Hughes1907 0.043
Losses
1. Bob Groom1909 26
Happy Townsend1904 26
3. Walter Johnson1909 25
4. Beany Jacobson1904 23
Casey Patten1904 23
6. Bill Carrick1901 22
Al Orth1903 22
Casey Patten1903 22
9. Harry Harper1919 21
Casey Patten1905 21
Earned Runs
1. Jimmie DeShong1937 144
2. Al Orth1902 143
3. Bill Carrick1902 139
4. Bobo Newsom1936 137
5. Bill Carrick1901 135
Al Orth1903 135
Casey Patten1902 135
8. Earl Whitehill1935 133
9. General Crowder1933 132
10. LaTroy Hawkins1999 129
Wild Pitches
1. Walter Johnson1910 21
2. Happy Townsend1904 19
3. Walter Johnson1911 17
4. Dave Goltz1976 15
Jack Morris1991 15
Johan Santana2002 15
Mike Smithson1986 15
8. Hector Carrasco2000 14
Cy Falkenberg1906 14
Walter Johnson1914 14
Hit By Pitch
1. Bill Carrick1901 20
Walter Johnson1923 20
Casey Patten1904 20
4. Walter Johnson1915 19
5. Jim Kaat1962 18
6. Casey Patten1901 17
7. Bert Blyleven1988 16
Walter Johnson1912 16
9. Tom Hughes1913 15
Walter Johnson1909 15
Mike Smithson1985 15
Happy Townsend1905 15
Batters Faced
1. Casey Patten1904 1478
2. Bill Carrick1901 1415
3. Walter Johnson1912 1413
4. Walter Johnson1916 1410
5. Walter Johnson1914 1406
6. Walter Johnson1910 1367
7. General Crowder1932 1356
8. Al Orth1902 1334
9. Bert Blyleven1973 1321
10. Walter Johnson1911 1306
Games Finished
1. Mike Marshall1979 84
2. Bill Campbell1976 68
3. Rick Aguilera1998 64
4. Doug Corbett1980 63
Joe Nathan2004 63
6. Eddie Guardado2002 62
Joe Nathan2009 62
8. Rick Aguilera1992 61
Rick Aguilera1993 61
Ron Davis1983 61
Joe Nathan2006 61
Jeff Reardon1989 61
Adjusted ERA+
1. Walter Johnson1913 259
2. Walter Johnson1912 243
3. Walter Johnson1919 215
4. Walter Johnson1918 214
5. Walter Johnson1915 191
6. Walter Johnson1910 183
7. Johan Santana2004 182
8. Walter Johnson1911 173
9. Allan Anderson1988 166
10. Walter Johnson1914 164
Fielding Independent Pitching
1. Walter Johnson1910 1.38
2. Walter Johnson1908 1.60
3. Walter Johnson1916 1.82
4. Charlie Smith1907 1.86
5. Walter Johnson1913 1.90
6. Walter Johnson1915 1.91
7. Tom Hughes1908 1.95
8. Walter Johnson1917 1.98
9. Walter Johnson1914 2.02
10. Walter Johnson1912 2.03
Walter Johnson1918 2.03
Adj. Pitching Runs
1. Walter Johnson1912 76
2. Walter Johnson1913 71
3. Johan Santana2004 54
4. Walter Johnson1915 51
Walter Johnson1919 51
6. Walter Johnson1918 49
7. Bert Blyleven1973 47
Walter Johnson1914 47
9. Frank Viola1987 46
10. Johan Santana2006 45
Adj. Pitching Wins
1. Walter Johnson1912 8.4
2. Walter Johnson1913 8.3
3. Walter Johnson1918 6.1
4. Walter Johnson1915 5.8
Walter Johnson1919 5.8
6. Walter Johnson1914 5.5
Johan Santana2004 5.5
8. Bert Blyleven1973 5.2
Walter Johnson1910 5.2
10. Frank Viola1987 4.7
Base-Out Runs Saved (RE24) †
1. Johan Santana2004 62.46
2. Bert Blyleven1973 50.62
3. Johan Santana2006 49.87
4. Firpo Marberry1929 49.43
5. Frank Viola1987 47.74
6. Doug Corbett1980 45.48
7. Walter Johnson1924 45.29
8. Johan Santana2005 45.11
9. Walter Johnson1919 43.23
10. Frank Viola1988 43.04
Win Probability Added (WPA) †
1. Doug Corbett1980 7.8
2. Walter Johnson1919 5.8
Joe Nathan2004 5.8
4. Johan Santana2004 5.7
5. Roger Wolff1945 5.5
6. Frank Viola1988 5.2
7. Joe Nathan2006 5.1
8. Frank Viola1987 4.8
9. Dutch Leonard1939 4.5
10. Bump Hadley1930 4.4
Firpo Marberry1929 4.4
J.C. Romero2002 4.4
Johan Santana2005 4.4
Sit. Wins Saved (WPA/LI) †
1. Johan Santana2004 6.3
2. Johan Santana2006 5.1
3. Johan Santana2005 4.8
4. Walter Johnson1919 4.7
5. Bert Blyleven1973 4.6
Walter Johnson1924 4.6
Firpo Marberry1929 4.6
8. Roger Wolff1945 4.5
9. Frank Viola1987 4.4
10. Garland Braxton1928 4.1
General Crowder1932 4.1
Championship WPA (cWPA) †
1. Walter Johnson1924 18.4
2. Roger Wolff1945 18.2
3. Tom Zachary1924 14.7
4. Walter Johnson1925 11.7
5. Stan Coveleski1925 11.0
6. Frank Viola1984 10.4
7. Firpo Marberry1925 9.5
8. Earl Whitehill1933 9.1
9. Jim Kaat1967 8.9
10. Frank Viola1987 8.8
Base-Out Wins Saved (REW) †
1. Johan Santana2004 6.5
2. Bert Blyleven1973 5.5
3. Johan Santana2006 5.2
4. Walter Johnson1919 4.9
Firpo Marberry1929 4.9
6. Frank Viola1987 4.8
7. Walter Johnson1924 4.7
Johan Santana2005 4.7
9. Frank Viola1988 4.6
10. Doug Corbett1980 4.5

Data Notes