Single-Season Leaders & Records for Won-Loss %

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Single-Season Leaders & Records for Won-Loss %
Baseball Leaders & Baseball Records: Single-Season Career Active Progressive Year-by-Year League

Click on the Player for career stats and accomplishments.
+ - Indicates Hall of Famer. Bold indicates active player
* - throws left-handed, ? - unknown, else - throws right-handed

Only players who finished in the top 40 for the majors in a season will appear on this list. Leaders from the current season are only included for rate stats after July 1st.

Minimum of 3.1 PA/G, 1.0 IP/G, and 0.1 decision/G for single-season leaderboards generally needed for rate statistics. Explanation of min. requirements

Rank Player (age that year) Won-Loss % Year Throws

1. Roy Face (31) .9470 1959 R

2. Johnny Allen (32) .9380 1937 R

3. Phil Regan (29) .9330 1966 R

4. Perry Werden (18) .9230 1884 R

5. Larry Twitchell (23) .9170 1887 R

6. Cliff Lee* (29) .9090 2008 L

7. Greg Maddux (29) .9050 1995 R

8. Randy Johnson* (31) .9000 1995 L

9. Ron Guidry* (27) .8930 1978 L

10. Freddie Fitzsimmons (38) .8890 1940 R

Daisuke Matsuzaka (27) .8890 2008 R

12. Lefty Grove+* (31) .8860 1931 L

13. Bob Stanley (23) .8820 1978 R

14. Preacher Roe* (36) .8800 1951 L

15. Ron Davis (23) .8750 1979 R

Fred Goldsmith (24) .8750 1880 R

Deacon Phillippe (38) .8750 1910 R

Tom Seaver+ (36) .8750 1981 R

19. Joe Wood (22) .8720 1912 R

20. Roger Clemens (38) .8700 2001 R

Rank Player (age that year) Won-Loss % Year Throws

David Cone (25) .8700 1988 R

22. Roger Moret* (23) .8670 1973 L

23. Orel Hershiser (26) .8640 1985 R

24. Bill Donovan (30) .8620 1907 R

Whitey Ford+* (32) .8620 1961 L

26. Jason Bere (23) .8570 1994 R

Roger Clemens (23) .8570 1986 R

Dwight Gooden (20) .8570 1985 R

Charlie Hodnett? (23) .8570 1884

Mike Nagy (21) .8570 1969 R

Eddie Rommel (31) .8570 1929 R

Harry Wheeler (20) .8570 1878 R

Eddie Yuhas (27) .8570 1952 R

34. Pedro Martinez (27) .8520 1999 R

35. Chief Bender+ (30) .8500 1914 R

John Smoltz (31) .8500 1998 R

37. Lefty Grove+* (30) .8480 1930 L

38. Mike Hampton* (26) .8460 1999 L

Ellis Kinder (36) .8460 1951 R

Preacher Roe* (37) .8460 1952 L

Rank Player (age that year) Won-Loss % Year Throws

41. Sandy Consuegra (33) .8420 1954 R

Tom Hughes (32) .8420 1916 R

Ron Perranoski* (27) .8420 1963 L

Schoolboy Rowe (30) .8420 1940 R

Ralph Terry (25) .8420 1961 R

Emil Yde* (24) .8420 1924 L

47. Lefty Gomez+* (25) .8390 1934 L

48. Bill Hoffer (24) .8380 1895 R

Denny McLain (24) .8380 1968 R

50. Walter Johnson+ (25) .8370 1913 R

51. Henry Boyle (23) .8330 1884 R

Spud Chandler (35) .8330 1943 R

King Cole (24) .8330 1910 R

Marvin Freeman (31) .8330 1994 R

Randy Johnson* (33) .8330 1997 L

Sandy Koufax+* (27) .8330 1963 L

Tim Lincecum (24) .8330 2008 R

Pedro Martinez (30) .8330 2002 R

Julian Tavarez (22) .8330 1995 R

Hoyt Wilhelm+ (29) .8330 1952 R

Rank Player (age that year) Won-Loss % Year Throws

61. Charley Radbourn+ (29) .8310 1884 R

62. Randy Johnson* (38) .8280 2002 L

63. Greg Maddux (31) .8260 1997 R

Ed Reulbach (23) .8260 1906 R

Elmer Riddle (26) .8260 1941 R

66. Jack Chesbro+ (28) .8240 1902 R

Juan Guzman (26) .8240 1993 R

Jay Hughes (25) .8240 1899 R

Bob Moose (21) .8240 1969 R

Roger Moret* (25) .8240 1975 L

Al Orth (26) .8240 1899 R

Roy Oswalt (23) .8240 2001 R

Wayne Simpson (21) .8240 1970 R

Dazzy Vance+ (33) .8240 1924 R

75. Chief Bender+ (26) .8210 1910 R

Bob Purkey (32) .8210 1962 R

Barry Zito* (24) .8210 2002 L

78. Joe Boever (33) .8180 1994 R

Roger Clemens (41) .8180 2004 R

Sal Maglie (33) .8180 1950 R

Rank Player (age that year) Won-Loss % Year Throws

Mark Portugal (30) .8180 1993 R

Bob Welch (33) .8180 1990 R

David Wells* (35) .8180 1998 L

84. Joe McGinnity+ (33) .8140 1904 R

85. Mordecai Brown+ (29) .8130 1906 R

Jim Coates (27) .8130 1960 R

Atley Donald (28) .8130 1939 R

Bob Feller+ (35) .8130 1954 R

Russ Ford (27) .8130 1910 R

Moose Haas (27) .8130 1983 R

Al Hrabosky* (25) .8130 1975 L

Carl Hubbell+* (33) .8130 1936 L

Tommy John* (31) .8130 1974 L

Howie Krist (26) .8130 1942 R

Al McBean (25) .8130 1963 R

Jamie Moyer* (33) .8130 1996 L

Eddie Plank+* (36) .8130 1912 L

Rip Sewell (41) .8130 1948 R

Jorge Sosa (28) .8130 2005 R

Hooks Wiltse* (24) .8130 1904 L

Rank Player (age that year) Won-Loss % Year Throws

101. Dizzy Dean+ (24) .8110 1934 R

102. Paul Abbott (33) .8100 2001 R

Johnny Allen (27) .8100 1932 R

Doc Crandall (22) .8100 1910 R

Jimmy Key* (33) .8100 1994 L

Phil Niekro+ (43) .8100 1982 R

Ed Reulbach (24) .8100 1907 R

Ted Wilks (28) .8100 1944 R

109. Tiny Bonham (28) .8080 1942 R

Chris Carpenter (30) .8080 2005 R

Alvin Crowder (29) .8080 1928 R

Catfish Hunter+ (27) .8080 1973 R

Larry Jansen (26) .8080 1947 R

Dave McNally* (28) .8080 1971 L

Bobo Newsom (32) .8080 1940 R

116. Howie Camnitz (27) .8060 1909 R

Eddie Cicotte (35) .8060 1919 R

Dave Ferriss (24) .8060 1946 R

Juan Marichal+ (28) .8060 1966 R

Christy Mathewson+ (28) .8060 1909 R

Rank Player (age that year) Won-Loss % Year Throws

121. Babe Adams (27) .8000 1909 R

Joe Beggs (29) .8000 1940 R

John Candelaria* (23) .8000 1977 L

Steve Comer (27) .8000 1981 R

Stan Coveleski+ (35) .8000 1925 R

Ed Doheny* (28) .8000 1902 L

John Franco* (24) .8000 1985 L

Tommy Greene (26) .8000 1993 R

Larry Gura* (30) .8000 1978 L

Jesse Haines+ (37) .8000 1931 R

Bert Humphries (32) .8000 1913 R

Sam Leever (33) .8000 1905 R

Francisco Liriano* (22) .8000 2006 L

Ed Lopat* (35) .8000 1953 L

Firpo Marberry (32) .8000 1931 R

Denny Neagle* (28) .8000 1997 L

Don Newcombe (29) .8000 1955 R

Jim Palmer+ (23) .8000 1969 R

Brad Penny (29) .8000 2007 R

Glen Perkins* (25) .8000 2008 L

Rank Player (age that year) Won-Loss % Year Throws

Rick Rhoden (23) .8000 1976 R

Robin Roberts+ (25) .8000 1952 R

Johan Santana* (24) .8000 2003 L

George Stone* (26) .8000 1973 L

William Van Landingham (23) .8000 1994 R

Mickey Welch+ (25) .8000 1885 R

Ed Wells* (30) .8000 1930 L

148. Al Spalding+ (25) .7970 1876 R

149. Don Newcombe (30) .7940 1956 R

150. Jocko Flynn (22) .7930 1886 R

Ellis Kinder (34) .7930 1949 R

Sal Maglie (34) .7930 1951 R

Bret Saberhagen (25) .7930 1989 R

154. Wally Bunker (19) .7920 1964 R

Shawn Estes* (24) .7920 1997 L

Sandy Koufax+* (28) .7920 1964 L

Dutch Leonard* (22) .7920 1914 L

158. Joe Black (28) .7890 1952 R

Hank Borowy (26) .7890 1942 R

Harry Brecheen* (30) .7890 1945 L

Rank Player (age that year) Won-Loss % Year Throws

Larry French* (34) .7890 1942 L

Lefty Grove+* (39) .7890 1939 L

Don Gullett* (24) .7890 1975 L

Red Lucas (34) .7890 1936 R

Roy Mahaffey (27) .7890 1931 R

Wade Miller (25) .7890 2002 R

167. Joe Bush (29) .7880 1922 R

Bill James (22) .7880 1914 R

Fred Klobedanz* (26) .7880 1897 L

170. Rick Aguilera (25) .7860 1987 R

Mark Clark (26) .7860 1994 R

Atley Donald (31) .7860 1942 R

Doug Drabek (27) .7860 1990 R

Tom Glavine* (27) .7860 1993 L

Ron Guidry* (34) .7860 1985 L

Don Gullett* (25) .7860 1976 L

Harry Gumbert (26) .7860 1936 R

Randy Gumpert (28) .7860 1946 R

Steve Hargan (27) .7860 1970 R

Mike Henneman (25) .7860 1987 R

Rank Player (age that year) Won-Loss % Year Throws

Matt Herges (30) .7860 2000 R

Joe Heving (38) .7860 1939 R

Tex Hughson (26) .7860 1942 R

John Lackey (29) .7860 2008 R

Jouett Meekin (27) .7860 1894 R

Clarence Mitchell* (39) .7860 1930 L

Red Munger (25) .7860 1944 R

Preacher Roe* (38) .7860 1953 L

Eddie Rommel (29) .7860 1927 R

Curt Schilling (34) .7860 2001 R

Lon Warneke (23) .7860 1932 R

192. Bob Caruthers (25) .7840 1889 R

George Mullin (28) .7840 1909 R

194. Bill Bernhard (31) .7830 1902 R

Tom Browning* (28) .7830 1988 L

Bartolo Colon (26) .7830 1999 R

Tex Hughson (28) .7830 1944 R

Jack Kramer (30) .7830 1948 R

Cliff Lee* (26) .7830 2005 L

Jack Manning (22) .7830 1876 R

Rank Player (age that year) Won-Loss % Year Throws

Mike Mussina (23) .7830 1992 R

Bob Ojeda* (28) .7830 1986 L

Johnny Podres* (28) .7830 1961 L

Bryn Smith (29) .7830 1985 R

205. Paul Derringer (32) .7810 1939 R

Bill Hoffer (25) .7810 1896 R

Sam Leever (31) .7810 1903 R

Mel Parnell* (27) .7810 1949 L

Tom Seaver+ (24) .7810 1969 R

Steve Stone (32) .7810 1980 R

211. Johnny Beazley (24) .7780 1942 R

Bob Caruthers (20) .7780 1884 R

Roger Clemens (27) .7780 1990 R

Russ Ford (31) .7780 1914 R

Lefty Grove+* (38) .7780 1938 L

Don Gullett* (26) .7780 1977 L

Bump Hadley (31) .7780 1936 R

Randy Johnson* (37) .7780 2001 L

Ted Kennedy? (20) .7780 1885

Ed Klepfer (29) .7780 1917 R

Rank Player (age that year) Won-Loss % Year Throws

Ray Kolp (27) .7780 1922 R

Pedro Martinez (31) .7780 2003 R

Joe McGinnity+ (29) .7780 1900 R

Bobby Mitchell* (22) .7780 1878 L

John Montefusco (33) .7780 1983 R

Jack Morris (37) .7780 1992 R

Art Nehf* (31) .7780 1924 L

Gaylord Perry+ (39) .7780 1978 R

Eric Plunk (30) .7780 1994 R

Johnny Ruffin (22) .7780 1994 R

Bret Saberhagen (30) .7780 1994 R

Curt Schilling (37) .7780 2004 R

Pete Schourek* (25) .7780 1994 L

Tom Seaver+ (32) .7780 1977 R

Pete Vuckovich (28) .7780 1981 R

Bob Welch (28) .7780 1985 R

Bob Wickman (24) .7780 1993 R

Mark Wohlers (24) .7780 1994 R

Cy Young+ (28) .7780 1895 R

240. Jack Coombs (27) .7750 1910 R

Rank Player (age that year) Won-Loss % Year Throws

Christy Mathewson+ (24) .7750 1905 R

242. Jack Chesbro+ (30) .7740 1904 R

Whitey Ford+* (34) .7740 1963 L

Lefty Gomez+* (23) .7740 1932 L

Clark Griffith+ (31) .7740 1901 R

Rube Marquard+* (24) .7740 1911 L

Ed Reulbach (25) .7740 1908 R

Jack Sanford (33) .7740 1962 R

Bobby Shantz* (26) .7740 1952 L

Frank Viola* (28) .7740 1988 L

Rube Waddell+* (25) .7740 1902 L

252. Chief Bender+ (27) .7730 1911 R

Bert Blyleven (38) .7730 1989 R

Bill Campbell (27) .7730 1976 R

Jamie Moyer* (34) .7730 1997 L

Charles Nagy (29) .7730 1996 R

C.C. Sabathia* (20) .7730 2001 L

Jason Schmidt (30) .7730 2003 R

259. Dolf Luque (32) .7710 1923 R

Christy Mathewson+ (27) .7710 1908 R

Rank Player (age that year) Won-Loss % Year Throws

Vic Willis+ (23) .7710 1899 R

262. Bernie Boland (24) .7690 1916 R

Mordecai Brown+ (30) .7690 1907 R

John Clarkson+ (22) .7690 1884 R

Roger Clemens (35) .7690 1998 R

Carl Erskine (26) .7690 1953 R

Charlie Ferguson (23) .7690 1886 R

Tom Glavine* (32) .7690 1998 L

Bob Grim (24) .7690 1954 R

Lefty Grove+* (29) .7690 1929 L

Tim Hudson (24) .7690 2000 R

Dick Hyde (29) .7690 1958 R

Jack Knott (27) .7690 1934 R

Ray Kremer (33) .7690 1926 R

Bill Lee (25) .7690 1935 R

Jon Lieber (31) .7690 2001 R

Dolf Luque (28) .7690 1919 R

Ramon Martinez (22) .7690 1990 R

Andy Messersmith (28) .7690 1974 R

Jamie Moyer* (38) .7690 2001 L

Rank Player (age that year) Won-Loss % Year Throws

Jerry Nops* (22) .7690 1897 L

Lou North (31) .7690 1922 R

Jim Perry (33) .7690 1969 R

George Pipgras (27) .7690 1927 R

Bret Saberhagen (21) .7690 1985 R

Johan Santana* (25) .7690 2004 L

Willard Schmidt (29) .7690 1957 R

Rick Sutcliffe (28) .7690 1984 R

Jesse Tannehill* (25) .7690 1900 L

Jesse Tannehill* (27) .7690 1902 L

Mike Torrez (34) .7690 1981 R

Will White (27) .7690 1882 R

Ted Wilks (33) .7690 1949 R

Joe Wood (24) .7690 1914 R

295. John Clarkson+ (23) .7680 1885 R

296. Bob Gibson+ (34) .7670 1970 R

Vean Gregg* (26) .7670 1911 L

Waite Hoyt+ (28) .7670 1928 R

Walter Johnson+ (36) .7670 1924 R

Bob Lemon+ (33) .7670 1954 R

Rank Player (age that year) Won-Loss % Year Throws

Jim Maloney (23) .7670 1963 R

Orval Overall (26) .7670 1907 R

Curt Schilling (35) .7670 2002 R

Warren Spahn+* (32) .7670 1953 L

Warren Spahn+* (42) .7670 1963 L

Cy Young+ (34) .7670 1901 R

307. Earl Caldwell (41) .7650 1946 R

Steve Carlton+* (36) .7650 1981 L

Danny Darwin (24) .7650 1980 R

Al Demaree (28) .7650 1913 R

Jesse Haines+ (32) .7650 1926 R

Ken Holloway (27) .7650 1925 R

Sandy Koufax+* (29) .7650 1965 L

Ted Lewis (25) .7650 1898 R

Bob Muncrief (29) .7650 1945 R

Johnny Murphy (28) .7650 1937 R

Allie Reynolds (37) .7650 1954 R

318. Lady Baldwin* (27) .7640 1886 L

319. Mordecai Brown+ (31) .7630 1908 R

Charlie Buffinton (30) .7630 1891 R

Rank Player (age that year) Won-Loss % Year Throws

Bob Caruthers (23) .7630 1887 R

Hal Newhouser+* (23) .7630 1944 L

323. Jack Bentley* (29) .7620 1924 L

Harry Brecheen* (29) .7620 1944 L

Tommy Byrne* (35) .7620 1955 L

Spud Chandler (34) .7620 1942 R

David Cone (31) .7620 1994 R

Juan Guzman (25) .7620 1992 R

Roy Halladay (29) .7620 2006 R

Ken Hill (28) .7620 1994 R

Sam Jones (25) .7620 1918 R

Red Munger (28) .7620 1947 R

Mike Mussina (25) .7620 1994 R

Rosy Ryan (25) .7620 1923 R

Rip Sewell (33) .7620 1940 R

Bob Tewksbury (31) .7620 1992 R

Edinson Volquez (24) .7620 2008 R

338. Jim Bibby (35) .7600 1980 R

Larry Christenson (23) .7600 1977 R

John Denny (30) .7600 1983 R

Rank Player (age that year) Won-Loss % Year Throws

Bill Doak (23) .7600 1914 R

Whitey Ford+* (27) .7600 1956 L

Jake Peavy (26) .7600 2007 R

Herb Pennock+* (29) .7600 1923 L

Eddie Plank+* (30) .7600 1906 L

Charley Root (30) .7600 1929 R

Dutch Ruether* (25) .7600 1919 L

Johan Santana* (27) .7600 2006 L

Chien-Ming Wang (26) .7600 2006 R

350. John Burkett (28) .7590 1993 R

Mort Cooper (29) .7590 1942 R

Mort Cooper (31) .7590 1944 R

Richard Dotson (24) .7590 1983 R

Roy Halladay (26) .7590 2003 R

Waite Hoyt+ (27) .7590 1927 R

Sam Leever (34) .7590 1906 R

357. Juan Marichal+ (25) .7580 1963 R

Sadie McMahon (26) .7580 1894 R

359. Cy Young+ (36) .7570 1903 R

360. Pete Alexander+ (28) .7560 1915 R

Rank Player (age that year) Won-Loss % Year Throws

George Haddock (24) .7560 1891 R

362. Bob Caruthers (21) .7550 1885 R

363. Larry Corcoran (20) .7540 1880 R

364. Johnny Antonelli* (24) .7500 1954 L

Luis Arroyo* (34) .7500 1961 L

Steve Avery* (23) .7500 1993 L

Jim Bibby (34) .7500 1979 R

Steve Blass (26) .7500 1968 R

Vida Blue* (21) .7500 1971 L

Hank Borowy (29) .7500 1945 R

Jim Bouton (24) .7500 1963 R

Mordecai Brown+ (32) .7500 1909 R

Charlie Buffinton (23) .7500 1884 R

Lew Burdette (26) .7500 1953 R

Rick Camp (28) .7500 1981 R

Chris Carpenter (29) .7500 2004 R

Roger Clemens (34) .7500 1997 R

Joe Corbett (21) .7500 1897 R

Doc Crandall (23) .7500 1911 R

Mike Cuellar* (33) .7500 1970 L

Rank Player (age that year) Won-Loss % Year Throws

Chuck Dobson (27) .7500 1971 R

George Earnshaw (29) .7500 1929 R

George Earnshaw (31) .7500 1931 R

Mike Flanagan* (31) .7500 1983 L

Whitey Ford+* (24) .7500 1953 L

Freddy Garcia (26) .7500 2001 R

Hank Gastright (28) .7500 1893 R

Lefty Gomez+* (32) .7500 1941 L

Mudcat Grant (29) .7500 1965 R

Lefty Grove+* (28) .7500 1928 L

Lefty Grove+* (33) .7500 1933 L

Roy Halladay (28) .7500 2005 R

Cole Hamels* (23) .7500 2007 L

Erik Hanson (30) .7500 1995 R

Orlando Hernandez (32) .7500 1998 R

Joe Hesketh* (32) .7500 1991 L

La Marr Hoyt (26) .7500 1981 R

Catfish Hunter+ (26) .7500 1972 R

Bruce Hurst* (30) .7500 1988 L

Jimmy Key* (32) .7500 1993 L

Rank Player (age that year) Won-Loss % Year Throws

Eric King (26) .7500 1990 R

Sandy Koufax+* (30) .7500 1966 L

Ed Lopat* (36) .7500 1954 L

Pat Malone (33) .7500 1936 R

Firpo Marberry (31) .7500 1930 R

Firpo Marberry (35) .7500 1934 R

Pedro Martinez (28) .7500 2000 R

Christy Mathewson+ (29) .7500 1910 R

Rudy May* (35) .7500 1980 L

Carl Mays (29) .7500 1921 R

Jim McCormick (28) .7500 1885 R

Lindy McDaniel (24) .7500 1960 R

Russ Meyer (29) .7500 1953 R

Jamie Moyer* (40) .7500 2003 L

Johnny Murphy (34) .7500 1943 R

Joe Nathan (28) .7500 2003 R

Gary Nolan (24) .7500 1972 R

Fred Norman* (32) .7500 1975 L

Russ Ortiz (29) .7500 2003 R

Jim Palmer+ (36) .7500 1982 R

Rank Player (age that year) Won-Loss % Year Throws

Jeff Parrett (26) .7500 1988 R

Ed Poole (27) .7500 1902 R

Mark Prior (22) .7500 2003 R

Horacio Ramirez* (23) .7500 2003 L

Dennis Rasmussen* (27) .7500 1986 L

Jerry Reuss* (31) .7500 1980 L

Schoolboy Rowe (24) .7500 1934 R

Red Ruffing+ (33) .7500 1938 R

Red Ruffing+ (34) .7500 1939 R

Vern Ruhle (29) .7500 1980 R

Reb Russell* (28) .7500 1917 L

Slim Sallee* (34) .7500 1919 L

Ervin Santana (25) .7500 2008 R

Jose Santiago (26) .7500 1967 R

Ferdie Schupp* (26) .7500 1917 L

Aaron Sele (31) .7500 2001 R

Bob Shaw (26) .7500 1959 R

Urban Shocker (36) .7500 1927 R

Bill Shores (26) .7500 1930 R

John Smoltz (29) .7500 1996 R

Rank Player (age that year) Won-Loss % Year Throws

Dave Stieb (32) .7500 1990 R

Monty Stratton (25) .7500 1937 R

Mike Sullivan (25) .7500 1892 R

Bill Swift (33) .7500 1995 R

John Tudor* (36) .7500 1990 L

Bob Turley (27) .7500 1958 R

Russ Van Atta* (27) .7500 1933 L

Justin Verlander (24) .7500 2007 R

Pete Vuckovich (29) .7500 1982 R

Bill Walker* (30) .7500 1934 L

Jarrod Washburn* (27) .7500 2002 L

Doc White* (27) .7500 1906 L

Hoyt Wilhelm+ (31) .7500 1954 R

Joe Wood (25) .7500 1915 R

Cy Young+ (25) .7500 1892 R

456. Tim Keefe+ (31) .7450 1888 R

457. Claude Hendrix (25) .7440 1914 R

Cy Young+ (35) .7440 1902 R

459. Juan Marichal+ (30) .7430 1968 R

Hal Newhouser+* (25) .7430 1946 L

Rank Player (age that year) Won-Loss % Year Throws

461. Noodles Hahn* (20) .7420 1899 L

Orel Hershiser (29) .7420 1988 R

Danny Jackson* (26) .7420 1988 L

Nick Maddox (21) .7420 1908 R

Eddie Plank+* (35) .7420 1911 L

Bucky Walters (35) .7420 1944 R

467. Gene Bearden* (27) .7410 1948 L

Josh Beckett (27) .7410 2007 R

Harry Brecheen* (33) .7410 1948 L

Steve Carlton+* (31) .7410 1976 L

David Cone (35) .7410 1998 R

Bob Forsch (27) .7410 1977 R

Wayne Garland (25) .7410 1976 R

Rick Helling (27) .7410 1998 R

Claude Hendrix (29) .7410 1918 R

Tom Hughes (24) .7410 1903 R

Walter Johnson+ (37) .7410 1925 R

Tommy John* (34) .7410 1977 L

Al Maul (32) .7410 1898 R

Dave McNally* (26) .7410 1969 L

Rank Player (age that year) Won-Loss % Year Throws

Flint Rhem (25) .7410 1926 R

Red Ruffing+ (32) .7410 1937 R

483. Doyle Alexander (33) .7390 1984 R

Whitey Ford+* (35) .7390 1964 L

Dwight Gooden (21) .7390 1986 R

Al Leiter* (32) .7390 1998 L

Carl Lundgren (26) .7390 1906 R

Herb Pennock+* (34) .7390 1928 L

Jack Pfiester* (31) .7390 1909 L

Allie Reynolds (32) .7390 1949 R

Fred Toney (26) .7390 1915 R

492. Jim McCormick (29) .7380 1886 R

Kid Nichols+ (27) .7380 1897 R

494. Babe Adams (39) .7370 1921 R

Dick Bosman (25) .7370 1969 R

Nelson Briles (23) .7370 1967 R

Mike Caldwell* (25) .7370 1974 L

Spud Chandler (30) .7370 1938 R

Duke Esper* (27) .7370 1896 L

Sid Fernandez* (26) .7370 1989 L

Wes Ferrell (26) .7370 1934 R

Ray Fisher (31) .7370 1919 R

Hersh Freeman (27) .7370 1956 R

Mike Garcia (25) .7370 1949 R

Scott Garrelts (27) .7370 1989 R

Whitey Glazner (27) .7370 1921 R

Bob Knepper* (34) .7370 1988 L

John Lackey (26) .7370 2005 R

Sam Leever (29) .7370 1901 R

Bill Lohrman (29) .7370 1942 R

Dennis Martinez (26) .7370 1981 R

Stu Miller (33) .7370 1961 R

Amos Rusie+ (26) .7370 1897 R

Spec Shea (26) .7370 1947 R

Clyde Shoun* (31) .7370 1943 L

Whit Wyatt (35) .7370 1943 R

Baseball Leaders & Baseball Records: Single-Season Career Active Progressive Year-by-Year League

Note that seasons prior to 1876 are not included in single-season marks, but are included in career marks.


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You Are Here > Baseball-Reference.com > Leaders & Records > Single-Season Leaders & Records for Won-Loss %

Rank	Player (age that year)	Won-Loss %	Year	Throws
1.	Roy Face (31)	.9470	1959	R
2.	Johnny Allen (32)	.9380	1937	R
3.	Phil Regan (29)	.9330	1966	R
4.	Perry Werden (18)	.9230	1884	R
5.	Larry Twitchell (23)	.9170	1887	R
6.	Cliff Lee* (29)	.9090	2008	L
7.	Greg Maddux (29)	.9050	1995	R
8.	Randy Johnson* (31)	.9000	1995	L
9.	Ron Guidry* (27)	.8930	1978	L
10.	Freddie Fitzsimmons (38)	.8890	1940	R
	Daisuke Matsuzaka (27)	.8890	2008	R
12.	Lefty Grove+* (31)	.8860	1931	L
13.	Bob Stanley (23)	.8820	1978	R
14.	Preacher Roe* (36)	.8800	1951	L
15.	Ron Davis (23)	.8750	1979	R
	Fred Goldsmith (24)	.8750	1880	R
	Deacon Phillippe (38)	.8750	1910	R
	Tom Seaver+ (36)	.8750	1981	R
19.	Joe Wood (22)	.8720	1912	R
20.	Roger Clemens (38)	.8700	2001	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	David Cone (25)	.8700	1988	R
22.	Roger Moret* (23)	.8670	1973	L
23.	Orel Hershiser (26)	.8640	1985	R
24.	Bill Donovan (30)	.8620	1907	R
	Whitey Ford+* (32)	.8620	1961	L
26.	Jason Bere (23)	.8570	1994	R
	Roger Clemens (23)	.8570	1986	R
	Dwight Gooden (20)	.8570	1985	R
	Charlie Hodnett? (23)	.8570	1884
	Mike Nagy (21)	.8570	1969	R
	Eddie Rommel (31)	.8570	1929	R
	Harry Wheeler (20)	.8570	1878	R
	Eddie Yuhas (27)	.8570	1952	R
34.	Pedro Martinez (27)	.8520	1999	R
35.	Chief Bender+ (30)	.8500	1914	R
	John Smoltz (31)	.8500	1998	R
37.	Lefty Grove+* (30)	.8480	1930	L
38.	Mike Hampton* (26)	.8460	1999	L
	Ellis Kinder (36)	.8460	1951	R
	Preacher Roe* (37)	.8460	1952	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
41.	Sandy Consuegra (33)	.8420	1954	R
	Tom Hughes (32)	.8420	1916	R
	Ron Perranoski* (27)	.8420	1963	L
	Schoolboy Rowe (30)	.8420	1940	R
	Ralph Terry (25)	.8420	1961	R
	Emil Yde* (24)	.8420	1924	L
47.	Lefty Gomez+* (25)	.8390	1934	L
48.	Bill Hoffer (24)	.8380	1895	R
	Denny McLain (24)	.8380	1968	R
50.	Walter Johnson+ (25)	.8370	1913	R
51.	Henry Boyle (23)	.8330	1884	R
	Spud Chandler (35)	.8330	1943	R
	King Cole (24)	.8330	1910	R
	Marvin Freeman (31)	.8330	1994	R
	Randy Johnson* (33)	.8330	1997	L
	Sandy Koufax+* (27)	.8330	1963	L
	Tim Lincecum (24)	.8330	2008	R
	Pedro Martinez (30)	.8330	2002	R
	Julian Tavarez (22)	.8330	1995	R
	Hoyt Wilhelm+ (29)	.8330	1952	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
61.	Charley Radbourn+ (29)	.8310	1884	R
62.	Randy Johnson* (38)	.8280	2002	L
63.	Greg Maddux (31)	.8260	1997	R
	Ed Reulbach (23)	.8260	1906	R
	Elmer Riddle (26)	.8260	1941	R
66.	Jack Chesbro+ (28)	.8240	1902	R
	Juan Guzman (26)	.8240	1993	R
	Jay Hughes (25)	.8240	1899	R
	Bob Moose (21)	.8240	1969	R
	Roger Moret* (25)	.8240	1975	L
	Al Orth (26)	.8240	1899	R
	Roy Oswalt (23)	.8240	2001	R
	Wayne Simpson (21)	.8240	1970	R
	Dazzy Vance+ (33)	.8240	1924	R
75.	Chief Bender+ (26)	.8210	1910	R
	Bob Purkey (32)	.8210	1962	R
	Barry Zito* (24)	.8210	2002	L
78.	Joe Boever (33)	.8180	1994	R
	Roger Clemens (41)	.8180	2004	R
	Sal Maglie (33)	.8180	1950	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Mark Portugal (30)	.8180	1993	R
	Bob Welch (33)	.8180	1990	R
	David Wells* (35)	.8180	1998	L
84.	Joe McGinnity+ (33)	.8140	1904	R
85.	Mordecai Brown+ (29)	.8130	1906	R
	Jim Coates (27)	.8130	1960	R
	Atley Donald (28)	.8130	1939	R
	Bob Feller+ (35)	.8130	1954	R
	Russ Ford (27)	.8130	1910	R
	Moose Haas (27)	.8130	1983	R
	Al Hrabosky* (25)	.8130	1975	L
	Carl Hubbell+* (33)	.8130	1936	L
	Tommy John* (31)	.8130	1974	L
	Howie Krist (26)	.8130	1942	R
	Al McBean (25)	.8130	1963	R
	Jamie Moyer* (33)	.8130	1996	L
	Eddie Plank+* (36)	.8130	1912	L
	Rip Sewell (41)	.8130	1948	R
	Jorge Sosa (28)	.8130	2005	R
	Hooks Wiltse* (24)	.8130	1904	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
101.	Dizzy Dean+ (24)	.8110	1934	R
102.	Paul Abbott (33)	.8100	2001	R
	Johnny Allen (27)	.8100	1932	R
	Doc Crandall (22)	.8100	1910	R
	Jimmy Key* (33)	.8100	1994	L
	Phil Niekro+ (43)	.8100	1982	R
	Ed Reulbach (24)	.8100	1907	R
	Ted Wilks (28)	.8100	1944	R
109.	Tiny Bonham (28)	.8080	1942	R
	Chris Carpenter (30)	.8080	2005	R
	Alvin Crowder (29)	.8080	1928	R
	Catfish Hunter+ (27)	.8080	1973	R
	Larry Jansen (26)	.8080	1947	R
	Dave McNally* (28)	.8080	1971	L
	Bobo Newsom (32)	.8080	1940	R
116.	Howie Camnitz (27)	.8060	1909	R
	Eddie Cicotte (35)	.8060	1919	R
	Dave Ferriss (24)	.8060	1946	R
	Juan Marichal+ (28)	.8060	1966	R
	Christy Mathewson+ (28)	.8060	1909	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
121.	Babe Adams (27)	.8000	1909	R
	Joe Beggs (29)	.8000	1940	R
	John Candelaria* (23)	.8000	1977	L
	Steve Comer (27)	.8000	1981	R
	Stan Coveleski+ (35)	.8000	1925	R
	Ed Doheny* (28)	.8000	1902	L
	John Franco* (24)	.8000	1985	L
	Tommy Greene (26)	.8000	1993	R
	Larry Gura* (30)	.8000	1978	L
	Jesse Haines+ (37)	.8000	1931	R
	Bert Humphries (32)	.8000	1913	R
	Sam Leever (33)	.8000	1905	R
	Francisco Liriano* (22)	.8000	2006	L
	Ed Lopat* (35)	.8000	1953	L
	Firpo Marberry (32)	.8000	1931	R
	Denny Neagle* (28)	.8000	1997	L
	Don Newcombe (29)	.8000	1955	R
	Jim Palmer+ (23)	.8000	1969	R
	Brad Penny (29)	.8000	2007	R
	Glen Perkins* (25)	.8000	2008	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Rick Rhoden (23)	.8000	1976	R
	Robin Roberts+ (25)	.8000	1952	R
	Johan Santana* (24)	.8000	2003	L
	George Stone* (26)	.8000	1973	L
	William Van Landingham (23)	.8000	1994	R
	Mickey Welch+ (25)	.8000	1885	R
	Ed Wells* (30)	.8000	1930	L
148.	Al Spalding+ (25)	.7970	1876	R
149.	Don Newcombe (30)	.7940	1956	R
150.	Jocko Flynn (22)	.7930	1886	R
	Ellis Kinder (34)	.7930	1949	R
	Sal Maglie (34)	.7930	1951	R
	Bret Saberhagen (25)	.7930	1989	R
154.	Wally Bunker (19)	.7920	1964	R
	Shawn Estes* (24)	.7920	1997	L
	Sandy Koufax+* (28)	.7920	1964	L
	Dutch Leonard* (22)	.7920	1914	L
158.	Joe Black (28)	.7890	1952	R
	Hank Borowy (26)	.7890	1942	R
	Harry Brecheen* (30)	.7890	1945	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Larry French* (34)	.7890	1942	L
	Lefty Grove+* (39)	.7890	1939	L
	Don Gullett* (24)	.7890	1975	L
	Red Lucas (34)	.7890	1936	R
	Roy Mahaffey (27)	.7890	1931	R
	Wade Miller (25)	.7890	2002	R
167.	Joe Bush (29)	.7880	1922	R
	Bill James (22)	.7880	1914	R
	Fred Klobedanz* (26)	.7880	1897	L
170.	Rick Aguilera (25)	.7860	1987	R
	Mark Clark (26)	.7860	1994	R
	Atley Donald (31)	.7860	1942	R
	Doug Drabek (27)	.7860	1990	R
	Tom Glavine* (27)	.7860	1993	L
	Ron Guidry* (34)	.7860	1985	L
	Don Gullett* (25)	.7860	1976	L
	Harry Gumbert (26)	.7860	1936	R
	Randy Gumpert (28)	.7860	1946	R
	Steve Hargan (27)	.7860	1970	R
	Mike Henneman (25)	.7860	1987	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Matt Herges (30)	.7860	2000	R
	Joe Heving (38)	.7860	1939	R
	Tex Hughson (26)	.7860	1942	R
	John Lackey (29)	.7860	2008	R
	Jouett Meekin (27)	.7860	1894	R
	Clarence Mitchell* (39)	.7860	1930	L
	Red Munger (25)	.7860	1944	R
	Preacher Roe* (38)	.7860	1953	L
	Eddie Rommel (29)	.7860	1927	R
	Curt Schilling (34)	.7860	2001	R
	Lon Warneke (23)	.7860	1932	R
192.	Bob Caruthers (25)	.7840	1889	R
	George Mullin (28)	.7840	1909	R
194.	Bill Bernhard (31)	.7830	1902	R
	Tom Browning* (28)	.7830	1988	L
	Bartolo Colon (26)	.7830	1999	R
	Tex Hughson (28)	.7830	1944	R
	Jack Kramer (30)	.7830	1948	R
	Cliff Lee* (26)	.7830	2005	L
	Jack Manning (22)	.7830	1876	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Mike Mussina (23)	.7830	1992	R
	Bob Ojeda* (28)	.7830	1986	L
	Johnny Podres* (28)	.7830	1961	L
	Bryn Smith (29)	.7830	1985	R
205.	Paul Derringer (32)	.7810	1939	R
	Bill Hoffer (25)	.7810	1896	R
	Sam Leever (31)	.7810	1903	R
	Mel Parnell* (27)	.7810	1949	L
	Tom Seaver+ (24)	.7810	1969	R
	Steve Stone (32)	.7810	1980	R
211.	Johnny Beazley (24)	.7780	1942	R
	Bob Caruthers (20)	.7780	1884	R
	Roger Clemens (27)	.7780	1990	R
	Russ Ford (31)	.7780	1914	R
	Lefty Grove+* (38)	.7780	1938	L
	Don Gullett* (26)	.7780	1977	L
	Bump Hadley (31)	.7780	1936	R
	Randy Johnson* (37)	.7780	2001	L
	Ted Kennedy? (20)	.7780	1885
	Ed Klepfer (29)	.7780	1917	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Ray Kolp (27)	.7780	1922	R
	Pedro Martinez (31)	.7780	2003	R
	Joe McGinnity+ (29)	.7780	1900	R
	Bobby Mitchell* (22)	.7780	1878	L
	John Montefusco (33)	.7780	1983	R
	Jack Morris (37)	.7780	1992	R
	Art Nehf* (31)	.7780	1924	L
	Gaylord Perry+ (39)	.7780	1978	R
	Eric Plunk (30)	.7780	1994	R
	Johnny Ruffin (22)	.7780	1994	R
	Bret Saberhagen (30)	.7780	1994	R
	Curt Schilling (37)	.7780	2004	R
	Pete Schourek* (25)	.7780	1994	L
	Tom Seaver+ (32)	.7780	1977	R
	Pete Vuckovich (28)	.7780	1981	R
	Bob Welch (28)	.7780	1985	R
	Bob Wickman (24)	.7780	1993	R
	Mark Wohlers (24)	.7780	1994	R
	Cy Young+ (28)	.7780	1895	R
240.	Jack Coombs (27)	.7750	1910	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Christy Mathewson+ (24)	.7750	1905	R
242.	Jack Chesbro+ (30)	.7740	1904	R
	Whitey Ford+* (34)	.7740	1963	L
	Lefty Gomez+* (23)	.7740	1932	L
	Clark Griffith+ (31)	.7740	1901	R
	Rube Marquard+* (24)	.7740	1911	L
	Ed Reulbach (25)	.7740	1908	R
	Jack Sanford (33)	.7740	1962	R
	Bobby Shantz* (26)	.7740	1952	L
	Frank Viola* (28)	.7740	1988	L
	Rube Waddell+* (25)	.7740	1902	L
252.	Chief Bender+ (27)	.7730	1911	R
	Bert Blyleven (38)	.7730	1989	R
	Bill Campbell (27)	.7730	1976	R
	Jamie Moyer* (34)	.7730	1997	L
	Charles Nagy (29)	.7730	1996	R
	C.C. Sabathia* (20)	.7730	2001	L
	Jason Schmidt (30)	.7730	2003	R
259.	Dolf Luque (32)	.7710	1923	R
	Christy Mathewson+ (27)	.7710	1908	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Vic Willis+ (23)	.7710	1899	R
262.	Bernie Boland (24)	.7690	1916	R
	Mordecai Brown+ (30)	.7690	1907	R
	John Clarkson+ (22)	.7690	1884	R
	Roger Clemens (35)	.7690	1998	R
	Carl Erskine (26)	.7690	1953	R
	Charlie Ferguson (23)	.7690	1886	R
	Tom Glavine* (32)	.7690	1998	L
	Bob Grim (24)	.7690	1954	R
	Lefty Grove+* (29)	.7690	1929	L
	Tim Hudson (24)	.7690	2000	R
	Dick Hyde (29)	.7690	1958	R
	Jack Knott (27)	.7690	1934	R
	Ray Kremer (33)	.7690	1926	R
	Bill Lee (25)	.7690	1935	R
	Jon Lieber (31)	.7690	2001	R
	Dolf Luque (28)	.7690	1919	R
	Ramon Martinez (22)	.7690	1990	R
	Andy Messersmith (28)	.7690	1974	R
	Jamie Moyer* (38)	.7690	2001	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Jerry Nops* (22)	.7690	1897	L
	Lou North (31)	.7690	1922	R
	Jim Perry (33)	.7690	1969	R
	George Pipgras (27)	.7690	1927	R
	Bret Saberhagen (21)	.7690	1985	R
	Johan Santana* (25)	.7690	2004	L
	Willard Schmidt (29)	.7690	1957	R
	Rick Sutcliffe (28)	.7690	1984	R
	Jesse Tannehill* (25)	.7690	1900	L
	Jesse Tannehill* (27)	.7690	1902	L
	Mike Torrez (34)	.7690	1981	R
	Will White (27)	.7690	1882	R
	Ted Wilks (33)	.7690	1949	R
	Joe Wood (24)	.7690	1914	R
295.	John Clarkson+ (23)	.7680	1885	R
296.	Bob Gibson+ (34)	.7670	1970	R
	Vean Gregg* (26)	.7670	1911	L
	Waite Hoyt+ (28)	.7670	1928	R
	Walter Johnson+ (36)	.7670	1924	R
	Bob Lemon+ (33)	.7670	1954	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Jim Maloney (23)	.7670	1963	R
	Orval Overall (26)	.7670	1907	R
	Curt Schilling (35)	.7670	2002	R
	Warren Spahn+* (32)	.7670	1953	L
	Warren Spahn+* (42)	.7670	1963	L
	Cy Young+ (34)	.7670	1901	R
307.	Earl Caldwell (41)	.7650	1946	R
	Steve Carlton+* (36)	.7650	1981	L
	Danny Darwin (24)	.7650	1980	R
	Al Demaree (28)	.7650	1913	R
	Jesse Haines+ (32)	.7650	1926	R
	Ken Holloway (27)	.7650	1925	R
	Sandy Koufax+* (29)	.7650	1965	L
	Ted Lewis (25)	.7650	1898	R
	Bob Muncrief (29)	.7650	1945	R
	Johnny Murphy (28)	.7650	1937	R
	Allie Reynolds (37)	.7650	1954	R
318.	Lady Baldwin* (27)	.7640	1886	L
319.	Mordecai Brown+ (31)	.7630	1908	R
	Charlie Buffinton (30)	.7630	1891	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Bob Caruthers (23)	.7630	1887	R
	Hal Newhouser+* (23)	.7630	1944	L
323.	Jack Bentley* (29)	.7620	1924	L
	Harry Brecheen* (29)	.7620	1944	L
	Tommy Byrne* (35)	.7620	1955	L
	Spud Chandler (34)	.7620	1942	R
	David Cone (31)	.7620	1994	R
	Juan Guzman (25)	.7620	1992	R
	Roy Halladay (29)	.7620	2006	R
	Ken Hill (28)	.7620	1994	R
	Sam Jones (25)	.7620	1918	R
	Red Munger (28)	.7620	1947	R
	Mike Mussina (25)	.7620	1994	R
	Rosy Ryan (25)	.7620	1923	R
	Rip Sewell (33)	.7620	1940	R
	Bob Tewksbury (31)	.7620	1992	R
	Edinson Volquez (24)	.7620	2008	R
338.	Jim Bibby (35)	.7600	1980	R
	Larry Christenson (23)	.7600	1977	R
	John Denny (30)	.7600	1983	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Bill Doak (23)	.7600	1914	R
	Whitey Ford+* (27)	.7600	1956	L
	Jake Peavy (26)	.7600	2007	R
	Herb Pennock+* (29)	.7600	1923	L
	Eddie Plank+* (30)	.7600	1906	L
	Charley Root (30)	.7600	1929	R
	Dutch Ruether* (25)	.7600	1919	L
	Johan Santana* (27)	.7600	2006	L
	Chien-Ming Wang (26)	.7600	2006	R
350.	John Burkett (28)	.7590	1993	R
	Mort Cooper (29)	.7590	1942	R
	Mort Cooper (31)	.7590	1944	R
	Richard Dotson (24)	.7590	1983	R
	Roy Halladay (26)	.7590	2003	R
	Waite Hoyt+ (27)	.7590	1927	R
	Sam Leever (34)	.7590	1906	R
357.	Juan Marichal+ (25)	.7580	1963	R
	Sadie McMahon (26)	.7580	1894	R
359.	Cy Young+ (36)	.7570	1903	R
360.	Pete Alexander+ (28)	.7560	1915	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	George Haddock (24)	.7560	1891	R
362.	Bob Caruthers (21)	.7550	1885	R
363.	Larry Corcoran (20)	.7540	1880	R
364.	Johnny Antonelli* (24)	.7500	1954	L
	Luis Arroyo* (34)	.7500	1961	L
	Steve Avery* (23)	.7500	1993	L
	Jim Bibby (34)	.7500	1979	R
	Steve Blass (26)	.7500	1968	R
	Vida Blue* (21)	.7500	1971	L
	Hank Borowy (29)	.7500	1945	R
	Jim Bouton (24)	.7500	1963	R
	Mordecai Brown+ (32)	.7500	1909	R
	Charlie Buffinton (23)	.7500	1884	R
	Lew Burdette (26)	.7500	1953	R
	Rick Camp (28)	.7500	1981	R
	Chris Carpenter (29)	.7500	2004	R
	Roger Clemens (34)	.7500	1997	R
	Joe Corbett (21)	.7500	1897	R
	Doc Crandall (23)	.7500	1911	R
	Mike Cuellar* (33)	.7500	1970	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Chuck Dobson (27)	.7500	1971	R
	George Earnshaw (29)	.7500	1929	R
	George Earnshaw (31)	.7500	1931	R
	Mike Flanagan* (31)	.7500	1983	L
	Whitey Ford+* (24)	.7500	1953	L
	Freddy Garcia (26)	.7500	2001	R
	Hank Gastright (28)	.7500	1893	R
	Lefty Gomez+* (32)	.7500	1941	L
	Mudcat Grant (29)	.7500	1965	R
	Lefty Grove+* (28)	.7500	1928	L
	Lefty Grove+* (33)	.7500	1933	L
	Roy Halladay (28)	.7500	2005	R
	Cole Hamels* (23)	.7500	2007	L
	Erik Hanson (30)	.7500	1995	R
	Orlando Hernandez (32)	.7500	1998	R
	Joe Hesketh* (32)	.7500	1991	L
	La Marr Hoyt (26)	.7500	1981	R
	Catfish Hunter+ (26)	.7500	1972	R
	Bruce Hurst* (30)	.7500	1988	L
	Jimmy Key* (32)	.7500	1993	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Eric King (26)	.7500	1990	R
	Sandy Koufax+* (30)	.7500	1966	L
	Ed Lopat* (36)	.7500	1954	L
	Pat Malone (33)	.7500	1936	R
	Firpo Marberry (31)	.7500	1930	R
	Firpo Marberry (35)	.7500	1934	R
	Pedro Martinez (28)	.7500	2000	R
	Christy Mathewson+ (29)	.7500	1910	R
	Rudy May* (35)	.7500	1980	L
	Carl Mays (29)	.7500	1921	R
	Jim McCormick (28)	.7500	1885	R
	Lindy McDaniel (24)	.7500	1960	R
	Russ Meyer (29)	.7500	1953	R
	Jamie Moyer* (40)	.7500	2003	L
	Johnny Murphy (34)	.7500	1943	R
	Joe Nathan (28)	.7500	2003	R
	Gary Nolan (24)	.7500	1972	R
	Fred Norman* (32)	.7500	1975	L
	Russ Ortiz (29)	.7500	2003	R
	Jim Palmer+ (36)	.7500	1982	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Jeff Parrett (26)	.7500	1988	R
	Ed Poole (27)	.7500	1902	R
	Mark Prior (22)	.7500	2003	R
	Horacio Ramirez* (23)	.7500	2003	L
	Dennis Rasmussen* (27)	.7500	1986	L
	Jerry Reuss* (31)	.7500	1980	L
	Schoolboy Rowe (24)	.7500	1934	R
	Red Ruffing+ (33)	.7500	1938	R
	Red Ruffing+ (34)	.7500	1939	R
	Vern Ruhle (29)	.7500	1980	R
	Reb Russell* (28)	.7500	1917	L
	Slim Sallee* (34)	.7500	1919	L
	Ervin Santana (25)	.7500	2008	R
	Jose Santiago (26)	.7500	1967	R
	Ferdie Schupp* (26)	.7500	1917	L
	Aaron Sele (31)	.7500	2001	R
	Bob Shaw (26)	.7500	1959	R
	Urban Shocker (36)	.7500	1927	R
	Bill Shores (26)	.7500	1930	R
	John Smoltz (29)	.7500	1996	R
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Dave Stieb (32)	.7500	1990	R
	Monty Stratton (25)	.7500	1937	R
	Mike Sullivan (25)	.7500	1892	R
	Bill Swift (33)	.7500	1995	R
	John Tudor* (36)	.7500	1990	L
	Bob Turley (27)	.7500	1958	R
	Russ Van Atta* (27)	.7500	1933	L
	Justin Verlander (24)	.7500	2007	R
	Pete Vuckovich (29)	.7500	1982	R
	Bill Walker* (30)	.7500	1934	L
	Jarrod Washburn* (27)	.7500	2002	L
	Doc White* (27)	.7500	1906	L
	Hoyt Wilhelm+ (31)	.7500	1954	R
	Joe Wood (25)	.7500	1915	R
	Cy Young+ (25)	.7500	1892	R
456.	Tim Keefe+ (31)	.7450	1888	R
457.	Claude Hendrix (25)	.7440	1914	R
	Cy Young+ (35)	.7440	1902	R
459.	Juan Marichal+ (30)	.7430	1968	R
	Hal Newhouser+* (25)	.7430	1946	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
461.	Noodles Hahn* (20)	.7420	1899	L
	Orel Hershiser (29)	.7420	1988	R
	Danny Jackson* (26)	.7420	1988	L
	Nick Maddox (21)	.7420	1908	R
	Eddie Plank+* (35)	.7420	1911	L
	Bucky Walters (35)	.7420	1944	R
467.	Gene Bearden* (27)	.7410	1948	L
	Josh Beckett (27)	.7410	2007	R
	Harry Brecheen* (33)	.7410	1948	L
	Steve Carlton+* (31)	.7410	1976	L
	David Cone (35)	.7410	1998	R
	Bob Forsch (27)	.7410	1977	R
	Wayne Garland (25)	.7410	1976	R
	Rick Helling (27)	.7410	1998	R
	Claude Hendrix (29)	.7410	1918	R
	Tom Hughes (24)	.7410	1903	R
	Walter Johnson+ (37)	.7410	1925	R
	Tommy John* (34)	.7410	1977	L
	Al Maul (32)	.7410	1898	R
	Dave McNally* (26)	.7410	1969	L
Rank	Player (age that year)	Won-Loss %	Year	Throws
	Flint Rhem (25)	.7410	1926	R
	Red Ruffing+ (32)	.7410	1937	R
483.	Doyle Alexander (33)	.7390	1984	R
	Whitey Ford+* (35)	.7390	1964	L
	Dwight Gooden (21)	.7390	1986	R
	Al Leiter* (32)	.7390	1998	L
	Carl Lundgren (26)	.7390	1906	R
	Herb Pennock+* (34)	.7390	1928	L
	Jack Pfiester* (31)	.7390	1909	L
	Allie Reynolds (32)	.7390	1949	R
	Fred Toney (26)	.7390	1915	R
492.	Jim McCormick (29)	.7380	1886	R
	Kid Nichols+ (27)	.7380	1897	R
494.	Babe Adams (39)	.7370	1921	R
	Dick Bosman (25)	.7370	1969	R
	Nelson Briles (23)	.7370	1967	R
	Mike Caldwell* (25)	.7370	1974	L
	Spud Chandler (30)	.7370	1938	R
	Duke Esper* (27)	.7370	1896	L
	Sid Fernandez* (26)	.7370	1989	L
	Wes Ferrell (26)	.7370	1934	R
	Ray Fisher (31)	.7370	1919	R
	Hersh Freeman (27)	.7370	1956	R
	Mike Garcia (25)	.7370	1949	R
	Scott Garrelts (27)	.7370	1989	R
	Whitey Glazner (27)	.7370	1921	R
	Bob Knepper* (34)	.7370	1988	L
	John Lackey (26)	.7370	2005	R
	Sam Leever (29)	.7370	1901	R
	Bill Lohrman (29)	.7370	1942	R
	Dennis Martinez (26)	.7370	1981	R
	Stu Miller (33)	.7370	1961	R
	Amos Rusie+ (26)	.7370	1897	R
	Spec Shea (26)	.7370	1947	R
	Clyde Shoun* (31)	.7370	1943	L
	Whit Wyatt (35)	.7370	1943	R