Yearly League Leaders & Records for Win Probability Added (WPA)

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Table
Year National League WPA American League WPA Other WPA
2026Mason Miller (SDP)3.0 Louis Varland (TOR)3.0
2025Paul Skenes (PIT)5.2 Garrett Crochet* (BOS)4.7
2024Ryan Helsley (STL)4.3 Emmanuel Clase (CLE)6.3
2023Tanner Scott* (MIA)5.1 Gerrit Cole (NYY)4.7
2022Sandy Alcantara (MIA)5.5 Jhoan Duran (MIN)4.6
2021Josh Hader* (MIL)4.8 Jordan Romano (TOR)3.8
2020Yu Darvish (CHC)2.4 Shane Bieber (CLE)2.9
2019Will Smith* (SFG)5.6 Justin Verlander (HOU)5.6
2018Jacob deGrom (NYM)6.1 Blake Treinen (OAK)6.3
2017Kenley Jansen (LAD)5.7 Corey Kluber (CLE)4.8
2016Jon Lester* (CHC)5.0 Zack Britton* (BAL)6.4
2015Zack Greinke (LAD)6.8 Wade Davis (KCR)4.3
2014Clayton Kershaw* (LAD)5.3 Dellin Betances (NYY)4.4
2013Clayton Kershaw* (LAD)4.9 Greg Holland (KCR)4.7
2012Craig Kimbrel (ATL)4.4 Jim Johnson (BAL)5.3
2011Tyler Clippard (WSN)5.2 Jered Weaver (LAA)5.1
2010Roy Halladay+ (PHI)5.1 Félix Hernández (SEA)4.8
2009Chris Carpenter (STL)5.6 Zack Greinke (KCR)5.8
2008Brad Lidge (PHI)5.3 Cliff Lee* (CLE)5.9
2007Takashi Saito (LAD)4.3 J.J. Putz (SEA)6.0
2006Takashi Saito (LAD)4.0 Francisco Rodríguez (LAA)5.4
2005Roger Clemens (HOU)6.0 Roy Halladay+ (TOR)4.6
2004Brad Lidge (HOU)5.7 Joe Nathan (MIN)5.8
2003Éric Gagné (LAD)6.6 Esteban Loaiza (CHW)5.3
2002Randy Johnson+* (ARI)6.0 Billy Koch (OAK)4.6
2001Randy Johnson+* (ARI)6.2 Troy Percival (ANA)4.3
2000Randy Johnson+* (ARI)5.9 Pedro Martínez+ (BOS)8.1
1999Billy Wagner+* (HOU)5.9 Pedro Martínez+ (BOS)6.9
1998Trevor Hoffman+ (SDP)6.3 Tom Gordon (BOS)5.8
1997Pedro Martínez+ (MON)6.4 Roger Clemens (TOR)7.1
1996Kevin Brown (FLA)6.0 Troy Percival (CAL)6.6
1995Greg Maddux+ (ATL)8.1 Randy Johnson+* (SEA)6.5
1994Greg Maddux+ (ATL)6.5 Mike Mussina+ (BAL)4.4
1993John Wetteland (MON)5.7 Kevin Appier (KCR)6.2
1992Greg Maddux+ (CHC)5.2 Kevin Appier (KCR)4.8
1991Dennis Martínez (MON)3.9 Jeff Montgomery (KCR)4.1
1990Danny Darwin (HOU)3.7 Roger Clemens (BOS)7.1
1989Mark Davis* (SDP)5.8 Bret Saberhagen (KCR)5.7
1988Orel Hershiser (LAD)6.7 Teddy Higuera* (MIL)5.2
1987Tim Burke (MON)5.0 Roger Clemens (BOS)5.2
1986Mike Scott (HOU)5.7 Roger Clemens (BOS)5.8
1985Dwight Gooden (NYM)9.9 Bret Saberhagen (KCR)5.0
1984Bruce Sutter+ (STL)4.4 Willie Hernández* (DET)8.7
1983Mario Soto (CIN)4.2 Dan Quisenberry (KCR)4.4
1982Joe Niekro (HOU)5.2 Bill Caudill (SEA)5.7
1981Fernando Valenzuela* (LAD)4.3 Steve McCatty (OAK)3.8
1980Steve Carlton+* (PHI)5.6 Doug Corbett (MIN)7.8
1979Kent Tekulve (PIT)5.7 Aurelio López (DET)6.6
1978Bob Knepper* (SFG)4.1 Mike Caldwell* (MIL)6.1
1977Rich Gossage+ (PIT)5.9 Jim Palmer+ (BAL)5.2
1976Randy Jones* (SDP)4.0 Vida Blue* (OAK)5.7
1975Tom Seaver+ (NYM)5.7 Rich Gossage+ (CHW)7.0
1974Andy Messersmith (LAD)4.2 Luis Tiant (BOS)5.8
1973Tom Seaver+ (NYM)6.4 John Hiller* (DET)8.4
1972Steve Carlton+* (PHI)8.3 Gaylord Perry+ (CLE)7.1
1971Tom Seaver+ (NYM)6.0 Vida Blue* (OAK)6.6
1970Bob Gibson+ (STL)4.6 Lindy McDaniel (NYY)5.7
1969Bob Gibson+ (STL)7.7 Denny McLain (DET)7.2
1968Bob Gibson+ (STL)8.0 Luis Tiant (CLE)6.4
1967Ted Abernathy (CIN)4.7 Joe Horlen (CHW)4.6
1966Sandy Koufax+* (LAD)8.0 Stu Miller (BAL)4.9
1965Sandy Koufax+* (LAD)8.3 Stu Miller (BAL)7.3
1964Sandy Koufax+* (LAD)5.7 Dean Chance (LAA)8.4
1963Sandy Koufax+* (LAD)7.8 Dick Radatz (BOS)6.2
1962Bob Purkey (CIN)5.7 Hank Aguirre* (DET)4.7
1961Stu Miller (SFG)4.1 Don Mossi* (DET)3.8
1960Lindy McDaniel (STL)5.7 Frank Baumann* (CHW)4.3
1959Vern Law (PIT)4.0 Hoyt Wilhelm+ (BAL)4.3
1958Red Witt (PIT)4.1 Bob Turley (NYY)3.5
1957Johnny Podres* (BRO)4.3 Ray Narleski (CLE)4.6
1956Don Newcombe (BRO)4.0 Herb Score* (CLE)5.3
1955Robin Roberts+ (PHI)3.0 Ray Narleski (CLE)6.1
1954Robin Roberts+ (PHI)6.6 Mike Garcia (CLE)5.3
1953Warren Spahn+* (MLN)7.0 Billy Pierce* (CHW)5.5
1952Robin Roberts+ (PHI)4.7 Bobby Shantz* (PHA)6.9
1951Sal Maglie (NYG)5.4 Billy Pierce* (CHW)4.4
1950Robin Roberts+ (PHI)5.4 Vic Raschi (NYY)4.9
1949Howie Pollet* (STL)5.4 Bob Lemon+ (CLE)6.9
1948Harry Brecheen* (STL)5.2 Gene Bearden* (CLE)4.6
1947Ewell Blackwell (CIN)7.1 Bob Feller+ (CLE)4.8
1946Howie Pollet* (STL)6.3 Bob Feller+ (CLE)7.6
1945Hank Wyse (CHC)4.9 Roger Wolff (WSH)5.5
1944Bucky Walters (CIN)6.3 Dizzy Trout (DET)4.1
1943Mort Cooper (STL)5.2 Spud Chandler (NYY)5.5
1942Ray Starr (CIN)6.1 Tiny Bonham (NYY)5.0
1941Whit Wyatt (BRO)4.8 Bob Feller+ (CLE)6.6
1940Bucky Walters (CIN)4.6 Bob Feller+ (CLE)8.8
1939Bucky Walters (CIN)6.3 Red Ruffing+ (NYY)5.9
1938Bill Lee (CHC)6.8 Red Ruffing+ (NYY)4.4
1937Lou Fette (BSN)5.2 Lefty Grove+* (BOS)6.3
1936Carl Hubbell+* (NYG)10.3 Lefty Grove+* (BOS)6.7
1935Paul Dean (STL)5.4 Lefty Grove+* (BOS)6.4
1934Dizzy Dean+ (STL)6.6 Mel Harder (CLE)5.8
1933Carl Hubbell+* (NYG)10.7 Lefty Grove+* (PHA)5.5
1932Lon Warneke (CHC)5.5 Lefty Grove+* (PHA)7.7
1931Bill Walker* (NYG)4.0 Lefty Grove+* (PHA)11.8
1930Dazzy Vance+ (BRO)6.2 Lefty Grove+* (PHA)9.8
1929Guy Bush (CHC)5.3 Lefty Grove+* (PHA)5.4
1928Larry Benton (NYG)5.7 Lefty Grove+* (PHA)5.6
1927Jesse Haines+ (STL)5.8 Wilcy Moore (NYY)8.7
1926Ray Kremer (PIT)5.5 George Uhle (CLE)6.9
1925Dolf Luque (CIN)6.5 Stan Coveleski+ (WSH)5.5
1924Dazzy Vance+ (BRO)7.6 Herb Pennock+* (NYY)6.5
1923Dolf Luque (CIN)10.2 Herb Pennock+* (NYY)4.7
1922Grover Alexander+ (CHC)4.9 Red Faber+ (CHW)5.7
1921Whitey Glazner (PIT)5.1 Red Faber+ (CHW)8.8
1920Grover Alexander+ (CHC)8.6 Urban Shocker (SLB)6.5
1919Hippo Vaughn* (CHC)6.2 Eddie Cicotte (CHW)9.0
1918Hippo Vaughn* (CHC)6.3 Walter Johnson+ (WSH)10.2
1917Grover Alexander+ (PHI)6.4 Jim Bagby (CLE)7.5
1916Grover Alexander+ (PHI)9.2 Bob Shawkey (NYY)6.4
1915Grover Alexander+ (PHI)8.3 Walter Johnson+ (WSH)7.4 FL: Dave Davenport (SLM)5.9
1914Bill James (BSN)7.8 Walter Johnson+ (WSH)7.4 FL: Claude Hendrix (CHI)9.2
1913Christy Mathewson+ (NYG)6.8 Walter Johnson+ (WSH)5.5
1912Christy Mathewson+ (NYG)5.8 Walter Johnson+ (WSH)13.1
1911Nap Rucker* (BRO)7.9 Walter Johnson+ (WSH)5.7
1910Christy Mathewson+ (NYG)7.3 Jack Coombs (PHA)8.9