Single-Season Top 10 Leaders

WAR for Pitchers †

1. Walter Johnson1913 15.2
2. Walter Johnson1912 14.3
3. Walter Johnson1914 12.0
4. Walter Johnson1915 11.9
5. Walter Johnson1919 10.8
6. Walter Johnson1910 10.7
7. Walter Johnson1918 10.5
8. Walter Johnson1916 10.3
9. Bert Blyleven1973 9.7
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 1.7
9. Walter Johnson1914 1.72
10. Walter Johnson1911 1.9

Wins

Win-Loss %

1. Kenta Maeda2020 .857
2. Walter Johnson1913 .837
3. Taj Bradley2026 .833
4. Stan Coveleski1925 .800
Firpo Marberry1931 .800
6. Frank Viola1988 .774
7. Bill Campbell1976 .773
8. Jim Perry1969 .769
Johan Santana2004 .769
10. Walter Johnson1924 .767

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
Joe Ryan2026 0.933
9. Walter Johnson1918 0.954
10. Walter Johnson1908 0.964

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. Joe Ryan2026 6.435
8. Dave Boswell1967 6.548
9. Walter Johnson1918 6.653
10. Harry Harper1918 6.713

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. Pablo LĂłpez2023 10.856
2. Kenta Maeda2020 10.800
3. Johan Santana2004 10.461
4. Joe Ryan2025 10.211
5. Joe Ryan2026 9.793
6. José Berríos2020 9.714
7. Johan Santana2007 9.658
8. Bailey Ober2024 9.621
9. Pablo LĂłpez2024 9.615
10. José Berríos2018 9.452

Games Played

1. Mike Marshall1979 90
2. Eddie Guardado1996 83
3. J.C. Romero2002 81
4. Eddie Guardado1998 79
6. Bill Campbell1976 78
7. Juan RincĂłn2004 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
7. Rick Aguilera1992 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

Complete Games

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
9. Frank Viola1986 37
10. Eric Milton2000 35
Eric Milton2001 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. Wyatt Lee1901 328
8. Al Orth1903 326
9. General Crowder1932 319

Strikeouts / Base On Balls

1. Phil Hughes2014 11.625
2. Kenta Maeda2020 8
3. Carlos Silva2005 7.889
4. Walter Johnson1913 6.395
5. Brad Radke2004 5.5
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
3. Walter Johnson1909 25
4. Beany Jacobson1904 23
6. Bill Carrick1901 22
Al Orth1903 22
9. Harry Harper1919 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

Hit By Pitch

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
Ron Davis1983 61
Joe Nathan2006 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
6. Walter Johnson1918 49
7. Bert Blyleven1973 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
6. Walter Johnson1914 5.5
8. Bert Blyleven1973 5.2
10. Frank Viola1987 4.7

Base-Out Runs Saved (RE24) †

1. Walter Johnson1912 103.68
2. Walter Johnson1915 68.78
3. Walter Johnson1914 68.30
4. Johan Santana2004 62.46
5. Walter Johnson1918 60.05
6. Walter Johnson1919 56.87
7. Walter Johnson1924 53.60
8. Walter Johnson1910 51.44
9. Bert Blyleven1973 50.62
10. Johan Santana2006 49.87

Win Probability Added (WPA) †

1. Walter Johnson1912 13.1
2. Walter Johnson1918 10.2
3. Doug Corbett1980 7.8
4. Walter Johnson1914 7.4
6. Walter Johnson1919 7.1
7. George Mogridge1921 5.9
8. Joe Nathan2004 5.8
9. Walter Johnson1911 5.7

Sit. Wins Saved (WPA/LI) †

1. Walter Johnson1912 10.7
2. Walter Johnson1915 7.2
3. Walter Johnson1918 6.9
4. Walter Johnson1914 6.6
5. Walter Johnson1916 6.4
6. Walter Johnson1919 6.3
8. Walter Johnson1910 6.2
9. Walter Johnson1924 5.3
10. Johan Santana2006 5.1

Championship WPA (cWPA) †

1. Walter Johnson1924 20.3
2. Roger Wolff1945 18.2
3. Tom Zachary1924 17.5
4. Walter Johnson1912 16.5
5. Stan Coveleski1925 16.4
6. Walter Johnson1925 15.7
7. Firpo Marberry1924 13.0
8. Frank Viola1984 10.4
9. Walter Johnson1918 10.2
10. Earl Whitehill1933 9.1

Base-Out Wins Saved (REW) †

1. Walter Johnson1912 11.7
2. Walter Johnson1914 8.2
3. Walter Johnson1915 8.0
4. Walter Johnson1918 7.7
5. Walter Johnson1919 6.6
6. Johan Santana2004 6.5
7. Walter Johnson1910 6.3
8. Walter Johnson1924 5.6
9. Bert Blyleven1973 5.5
10. Walter Johnson1916 5.2

Data Notes