Progressive Leaders & Records for Win Probability Added (WPA)

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Table
Year Career WPA   Single-Season WPA   ActiveWPA   Yearly WPA
1914 Jeff Pfeffer 6.4 Jeff Pfeffer 6.4 Jeff Pfeffer 6.4 Jeff Pfeffer 6.4
1915 Grover Alexander+ 11.9 Grover Alexander+ 8.2 Grover Alexander+ 11.9 Grover Alexander+ 8.2
1916 Grover Alexander+ 19.5 Grover Alexander+ 8.2 Grover Alexander+ 19.5 Grover Alexander+ 7.6
1917 Grover Alexander+ 23.8 Grover Alexander+ 8.2 Grover Alexander+ 23.8 Stan Coveleski+ 7.4
1918 Grover Alexander+ 23.9 Grover Alexander+ 8.2 Grover Alexander+ 23.9 Wilbur Cooper 4.0
1919 Grover Alexander+ 26.2 Grover Alexander+ 8.2 Grover Alexander+ 26.2 Walter Johnson+ 5.8
1920 Grover Alexander+ 31.9 Grover Alexander+ 8.2 Grover Alexander+ 31.9 Grover Alexander+ 5.7
1921 Grover Alexander+ 32.0 Red Faber+ 8.8 Grover Alexander+ 32.0 Red Faber+ 8.8
1922 Grover Alexander+ 36.9 Red Faber+ 8.8 Grover Alexander+ 36.9 Red Faber+ 5.7
1923 Grover Alexander+ 38.6 Dolf Luque 10.2 Grover Alexander+ 38.6 Dolf Luque 10.2
1924 Grover Alexander+ 39.2 Dolf Luque 10.2 Grover Alexander+ 39.2 Dazzy Vance+ 7.6
1925 Grover Alexander+ 41.0 Dolf Luque 10.2 Grover Alexander+ 41.0 Dolf Luque 6.5
1926 Grover Alexander+ 44.2 Dolf Luque 10.2 Grover Alexander+ 44.2 George Uhle 6.9
1927 Grover Alexander+ 48.9 Dolf Luque 10.2 Grover Alexander+ 48.9 Wilcy Moore 8.7
1928 Grover Alexander+ 51.4 Dolf Luque 10.2 Grover Alexander+ 51.4 Larry Benton 5.7
1929 Grover Alexander+ 52.5 Dolf Luque 10.2 Grover Alexander+ 52.5 Lefty Grove+ 5.4
1930 Grover Alexander+ 51.3 Dolf Luque 10.2 Grover Alexander+ 51.3 Lefty Grove+ 9.8
1931 Grover Alexander+ 51.3 Lefty Grove+ 11.8 Lefty Grove+ 42.8 Lefty Grove+ 11.8
1932 Grover Alexander+ 51.3 Lefty Grove+ 11.8 Lefty Grove+ 50.5 Lefty Grove+ 7.7
1933 Lefty Grove+ 56.1 Lefty Grove+ 11.8 Lefty Grove+ 56.1 Carl Hubbell+ 10.7
1934 Lefty Grove+ 54.2 Lefty Grove+ 11.8 Lefty Grove+ 54.2 Dizzy Dean+ 6.7
1935 Lefty Grove+ 60.6 Lefty Grove+ 11.8 Lefty Grove+ 60.6 Lefty Grove+ 6.4
1936 Lefty Grove+ 67.2 Lefty Grove+ 11.8 Lefty Grove+ 67.2 Carl Hubbell+ 10.3
1937 Lefty Grove+ 73.6 Lefty Grove+ 11.8 Lefty Grove+ 73.6 Lefty Grove+ 6.3
1938 Lefty Grove+ 77.6 Lefty Grove+ 11.8 Lefty Grove+ 77.6 Bill Lee 6.8
1939 Lefty Grove+ 82.8 Lefty Grove+ 11.8 Lefty Grove+ 82.8 Bucky Walters 6.3
1940 Lefty Grove+ 84.5 Lefty Grove+ 11.8 Lefty Grove+ 84.5 Bob Feller+ 8.8
1941 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Lefty Grove+ 82.9 Bob Feller+ 6.6
1942 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Carl Hubbell+ 48.6 Ray Starr 6.1
1943 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Carl Hubbell+ 47.2 Spud Chandler 5.5
1944 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Mel Harder 26.7 Bucky Walters 6.3
1945 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tommy Bridges 29.7 Roger Wolff 5.5
1946 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Ted Lyons+ 35.7 Hal Newhouser+ 7.5
1947 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 36.9 Warren Spahn+ 7.3
1948 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 39.6 Harry Brecheen 5.2
1949 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 39.6 Bob Lemon+ 6.9
1950 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 42.7 Robin Roberts+ 5.4
1951 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 45.0 Sal Maglie 5.4
1952 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 41.4 Bobby Shantz 6.9
1953 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 42.7 Warren Spahn+ 7.0
1954 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 44.3 Robin Roberts+ 6.6
1955 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 44.0 Ray Narleski 6.1
1956 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Feller+ 43.0 Herb Score 5.3
1957 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 42.1 Ray Narleski 4.6
1958 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 44.9 Red Witt 4.1
1959 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 47.5 Hoyt Wilhelm+ 4.3
1960 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 51.0 Lindy McDaniel 5.7
1961 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 53.6 Stu Miller 4.1
1962 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 56.4 Bob Purkey 5.7
1963 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 63.0 Sandy Koufax+ 7.8
1964 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 59.4 Dean Chance 8.4
1965 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Warren Spahn+ 58.5 Sandy Koufax+ 8.3
1966 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Whitey Ford+ 36.6 Sandy Koufax+ 8.0
1967 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Whitey Ford+ 37.0 Ted Abernathy 4.7
1968 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Juan Marichal+ 29.6 Bob Gibson+ 8.0
1969 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Juan Marichal+ 36.0 Bob Gibson+ 7.7
1970 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Juan Marichal+ 35.8 Lindy McDaniel 5.7
1971 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Juan Marichal+ 37.5 Vida Blue 6.6
1972 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Gibson+ 41.0 Steve Carlton+ 8.3
1973 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Gibson+ 42.8 John Hiller 8.4
1974 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bob Gibson+ 41.7 Luis Tiant 5.8
1975 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 40.0 Rich Gossage+ 7.0
1976 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 42.9 Vida Blue 5.7
1977 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 47.7 Rich Gossage+ 5.9
1978 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 49.3 Mike Caldwell 6.1
1979 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 51.0 Aurelio López 6.6
1980 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 50.6 Doug Corbett 7.8
1981 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 52.8 Fernando Valenzuela 4.3
1982 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 50.7 Bill Caudill 5.7
1983 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 50.4 Dan Quisenberry 4.4
1984 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 52.4 Willie Hernández 8.7
1985 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 55.8 Dwight Gooden 9.9
1986 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Tom Seaver+ 56.4 Roger Clemens 5.8
1987 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Rich Gossage+ 35.7 Roger Clemens 5.2
1988 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Don Sutton+ 33.4 Orel Hershiser 6.7
1989 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Bert Blyleven+ 33.1 Mark Davis 5.8
1990 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Nolan Ryan+ 32.6 Roger Clemens 7.1
1991 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Nolan Ryan+ 34.9 Jeff Montgomery 4.1
1992 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Nolan Ryan+ 34.9 Greg Maddux+ 5.2
1993 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 34.7 Kevin Appier 6.2
1994 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 38.3 Greg Maddux+ 6.5
1995 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 39.4 Greg Maddux+ 8.1
1996 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 43.1 Troy Percival 6.6
1997 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 50.3 Roger Clemens 7.1
1998 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 54.7 Trevor Hoffman+ 6.3
1999 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 55.7 Pedro Martinez+ 6.9
2000 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 57.9 Pedro Martinez+ 8.1
2001 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 60.4 Randy Johnson+ 6.2
2002 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 61.2 Randy Johnson+ 6.0
2003 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 64.2 Éric Gagné 6.6
2004 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 68.3 Joe Nathan 5.8
2005 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 74.3 Roger Clemens 6.0
2006 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 77.0 Francisco Rodríguez 5.4
2007 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Roger Clemens 77.7 J.J. Putz 6.0
2008 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Greg Maddux+ 59.5 Cliff Lee 5.9
2009 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Pedro Martinez+ 53.7 Zack Greinke 5.8
2010 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Mariano Rivera+ 50.7 Roy Halladay+ 5.1
2011 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Mariano Rivera+ 54.0 Tyler Clippard 5.2
2012 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Mariano Rivera+ 54.0 Jim Johnson 5.3
2013 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Mariano Rivera+ 56.6 Clayton Kershaw 4.9
2014 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Joe Nathan 31.0 Clayton Kershaw 5.3
2015 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Joe Nathan 31.0 Zack Greinke 6.8
2016 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Clayton Kershaw 34.6 Zack Britton 6.4
2017 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Clayton Kershaw 38.9 Kenley Jansen 5.7
2018 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Clayton Kershaw 40.8 Blake Treinen 6.3
2019 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Clayton Kershaw 43.6 Justin Verlander 5.6
2020 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Clayton Kershaw 45.0 Shane Bieber 2.9
2021 Lefty Grove+ 82.9 Lefty Grove+ 11.8 Clayton Kershaw 45.8 Josh Hader 4.8
2022 Lefty Grove+ 82.7 Lefty Grove+ 11.8 Clayton Kershaw 48.5 Sandy Alcántara 5.5
2023 Lefty Grove+ 82.7 Lefty Grove+ 11.8 Clayton Kershaw 50.6 Tanner Scott 4.9
2024 Lefty Grove+ 82.7 Lefty Grove+ 11.8 Justin Verlander 42.5 Seth Lugo 2.0