Major League Baseball Records
Single Season - Pitching (All-Time)
Active players highlighted
	Earned Run Avg							Wins
Rank	Name	Year	ERA				Rank	Name	Year	Wins
1	Tim Keefe	1880	0.86				1	Charley Radbourn	1884	59
2	Dutch Leonard	1914	0.96				2	Al Spalding	1875	54
3	Mordeci Brown	1906	1.04				3	John Clarkson	1885	53
4	Bob Gibson	1968	1.12				4	Guy Hecker	1884	52
5	Walter Johnson	1913	1.14				4	Al Spalding	1874	52
6	Christy Mathewson	1909	1.14				6	John Clarkson	1884	49
7	Jack Pfeister	1907	1.15				7	Charlie Boffinton	1884	48
8	Addie Joss	1908	1.16				7	Charley Radbourn	1883	48
9	Carl Lundgren	1907	1.17				9	Al Spalding	1876	47
10	Denny Driscoll	1882	1.21				9	John Ward	1879	47
	Strikeouts							Complete Games
Rank	Name	Year	Strikeouts				Rank	Name	Year	CG
1	Matt Kilroy	1886	513				1	Will White	1875	75
2	Toad Pamsey	1886	499				2	Old Hoss Radbourn	1884	73
3	Hugh Daily	1884	483				3	Pud Galvin	1883	72
4	Dupee Shaw	1884	451				3	Guy Hecker	1884	72
5	Old Hoss Radbourn	1884	441				3	Jim McCormick	1880	72
6	Charlie Buffinton	1884	417				6	Pud Galvin	1884	71
7	Guy Hecker	1884	385				7	John Clarkson	1885	68
8	Nolan Ryan	1973	383				7	John Clarkson	1889	68
9	Sandy Koufax	1965	382				7	Tim Keefe	1883	68
10	Bill Sweeney	1884	374				10	Butch Hutchinson	1892	67
	Walks							Shutouts
Rank	Name	Year	Walks				Rank	Name	Year	SHO
1	Amos Rusie	1890	289				1	Grover Alexander	1916	16
2	Mark Baldwin	1889	274				1	George Bradley	1876	16
3	Amos Rusie	1892	270				3	Jack Coombs	1910	13
4	Amos Rusie	1891	262				3	Bob Gibson	1968	13
5	Mark Baldwin	1891	227				5	Grover Alexander	1915	12
6	Jack Stivetts	1891	226				5	Pud Galvin	1884	12
7	Mark Baldwin	1891	219				5	Ed Morris	1886	12
8	Phil Knell	1891	218				8	Tommy Bond	1879	11
9	Bob Barr	1890	213				8	Dean Chance	1964	11
10	Amos Rusie	1893	212				8	Dave Foutz	1886	11
	Losses							Winning Percentage
Rank	Name	Year	Losses				Rank	Name	Year	Win Pct
1	John Coleman	1883	48				#N/A	Roy Face	1959	0.947
2	Will White	1880	42				1	Tony Gonsolin	2022	0.941
3	Larry McKeon	1884	41				2	Rick Sutcliffe	1984	0.941
4	George Bradley	1879	40				3	Johnny Allen	1937	0.938
4	Jim McCormick	1879	40				4	Phil Regan	1966	0.933
6	Kid Carsey	1891	37				5	Greg Maddux	1995	0.905
6	George Cobb	1892	37				6	Randy Johnson	1995	0.900
6	Henry Porter	1888	37				7	Ron Guidry	1978	0.893
9	Bill Hutchison	1892	36				8	Freddie Fitzsimmons	1940	0.889
9	Stump Wiedman	1886	36				8	Shane Bieber	2020	0.889
	Saves							Innings Pitched
Rank	Name	Year	Saves				Rank	Name	Year	IP
1	Francisco Rodriguez	2008	62				1	Will White	1879	680
2	Bobby Thigpen	1990	57				2	Old Hoss Radbourn	1884	678
2	Edwin Diaz	2018	57				3	Guy Hecker	1884	670
4	John Smoltz	2002	55				4	Jim McCormick	1880	657
4	Eric Gagne*	2003	55				5	Pud Galvin	1883	656
6	Mariano Rivera	2004	53				6	Pud Galvin	1884	636
6	Trevor Hoffman	1998	53				7	Old Hoss Radbourn	1883	632
6	Randy Myers	1993	53				8	John Clarkson	1885	623
9	Eric Gagne*	2002	52				9	Jim Delvin	1876	622
10	Rod Beck	1998	51				9	Bill Hutchison	1892	622
10	Dennis Eckersley	1992	51
10	Jim Johnson	2012	51
10	Jeurys Familia	2016	51
10	Mark Melancon	2015	51
* - In 1984, Rick Sutcliffe went 16-1 with the Chicago Cubs (NL) before being traded to the Cleveland Indians (AL)
~ - Denotes suspected steroid use
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Last Updated 10/13/24