Single-Season Player Pitching Records
Games played: Mike Marshall, 1974 – 106
Games started: Pud Galvin, 1883; Will White, 1879 – 75
Games in relief: Mike Marshall, 1974 – 106
Games finished: Mike Marshall, 1974 – 83
Wins: Old Hoss Radbourn, 1884 – 60
Losses: John Coleman, 1883 – 48
Decisions: Pud Galvin, 1883 – 75
Innings pitched: Will White, 1879 – 680
Complete games: Will White, 1879 – 75
Shutouts: George Bradley, 1876; Grover Cleveland Alexander, 1916 – 16
Saves: Francisco Rodríguez, 2008 – 62
Games finished: Mike Marshall, 1979 – 84
Strikeouts: Matt Kilroy, 1886 – 513
Batters faced: Will White, 1879 – 2,906
Pickoffs: Jerry Garvin, 1977 – 23
Caught stealing: Wilbur Cooper, 1914; Jeff Tesreau, 1914; Pat Ragan, 1915 – 37
Double plays: Gaylord Perry, 1973 – 47
Quality starts: Randy Johnson, 2002; Félix Hernández, 2010; Zack Greinke, 2015 – 30
Total pitches (since 1988): Randy Johnson, 2001 – 4,076
Strikes (since 2000): Randy Johnson, 2001 – 2,638
Strike percentage (since 2000): Phil Hughes, 2014 – 73.01%
Pitches per start (since 1988): Randy Johnson, 2001 – 117
Earned run average: Dutch Leonard, 1914 – 0.96
Earned run average (live-ball era): Bob Gibson, 1968 – 1.12
Walks and hits per inning pitched: Pedro Martínez, 2000 – 0.737
Hits per 9 innings: Nolan Ryan, 1972 – 5.26
Home runs per 9 innings (live-ball era): Rube Curry, 1920; Dicta Johnson, 1920; Allan Sothoron, 1921; Slim Harriss, 1926 – 0.0
Walks per 9 innings: Candy Cummings, 1875 – 0.09
Walks per 9 innings (modern era): Carlos Silva, 2005 – 0.4
Strikeouts per 9 innings: Gerrit Cole, 2019 – 13.8
Strikeouts per walk: Phil Hughes, 2014 – 11.63
Strikeout percentage: Gerrit Cole, 2019 – 39.9%
Walk percentage: Candy Cummings, 1875 – 0.2%
Walk percentage (modern era): Carlos Silva, 2005 – 1.2%
ERA+: Slim Jones, 1934 – 333
Batting average against: Pedro Martínez, 2000 – .167
On-base percentage against: Pedro Martínez, 2000 – .213
Slugging percentage against: Babe Ruth, 1916 – .228
Slugging percentage against (live-ball era): Bob Gibson, 1968 – .236
On-base plus slugging against: Bob Gibson, 1968 – .469
Isolated power against: Jim Shaw, 1917 – .027
Isolated power against (live-ball era): Harry Gumbert, 1942 – .043
BABIP against: Dave McNally, 1968 – .203
OPS+ against: Pedro Martínez, 2000 – 18
Wins above replacement: Pud Galvin, 1884 – 20.5
Wins above replacement (modern era): Walter Johnson, 1913 – 15.1
Wins above replacement (live-ball era): Dwight Gooden, 1985 – 12.2
Win probability added: Lefty Grove, 1931 – 11.8
Hits: John Coleman, 1883 – 772
Runs: Jim Britt, 1873 – 519
Earned runs: John Coleman, 1883 – 291
Home runs: Bert Blyleven, 1986 – 50
Walks: Amos Rusie, 1890 – 289
Intentional walks: Bob Feller, 1941; Jim Bunning, 1967; Randy Jones, 1978 – 20
Hit by pitch: Phil Knell, 1891 – 54
Singles: Wilbur Wood, 1973 – 290
Doubles: George Uhle, 1923 – 76
Triples: George Johnson, 1915 – 40
Total bases: Robin Roberts, 1956 – 555
Wild pitches: Mark Baldwin, 1889 – 83
Balks: Dave Stewart, 1988 – 16
Stolen bases: Al Mamaux, 1916 – 65
Blown saves: Gerry Staley, 1960; Rollie Fingers, 1976; Bruce Sutter, 1978; Bob Stanley, 1983; Ron Davis, 1984 – 14
Inherited runners: Mike Marshall, 1973 – 89
Inherited runners scored: Mike Marshall, 1974 – 31
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