Yearly League Leaders & Records for Strikeouts per 9 IP

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Table
Year National League SO9 American League SO9 Other SO9 Other SO9
2026Jacob Misiorowski (MIL)13.273 Jacob deGrom (TEX)10.819
2025Dylan Cease (SDP)11.518 Garrett Crochet* (BOS)11.177
2024Chris Sale* (ATL)11.398 Cole Ragans* (KCR)10.771
2023Spencer Strider (ATL)13.548 Kevin Gausman (TOR)11.530
2022Carlos Rodón* (SFG)11.983 Shohei Ohtani (LAA)11.873
2021Corbin Burnes (MIL)12.611 Dylan Cease (CHW)12.278
2020Jacob deGrom (NYM)13.765 Shane Bieber (CLE)14.198
2019Max Scherzer (WSN)12.691 Gerrit Cole (HOU)13.818
2018Max Scherzer (WSN)12.236 Gerrit Cole (HOU)12.399
2017Robbie Ray* (ARI)12.111 Chris Sale* (BOS)12.933
2016José Fernández (MIA)12.488 Michael Pineda (NYY)10.605
2015Clayton Kershaw* (LAD)11.643 Chris Sale* (CHW)11.818
2014Clayton Kershaw* (LAD)10.845 Chris Sale* (CHW)10.759
2013A.J. Burnett (PIT)9.848 Yu Darvish (TEX)11.890
2012Gio Gonzalez* (WSN)9.346 Max Scherzer (DET)11.078
2011Zack Greinke (MIL)10.538 Brandon Morrow (TOR)10.188
2010Tim Lincecum (SFG)9.791 Jon Lester* (BOS)9.736
2009Tim Lincecum (SFG)10.425 Justin Verlander (DET)10.088
2008Tim Lincecum (SFG)10.507 A.J. Burnett (TOR)9.393
2007Jake Peavy (SDP)9.672 Érik Bédard* (BAL)10.929
2006Jake Peavy (SDP)9.563 Johan Santana* (MIN)9.437
2005Mark Prior (CHC)10.152 Johan Santana* (MIN)9.246
2004Óliver Pérez* (PIT)10.974 Johan Santana* (MIN)10.461
2003Kerry Wood (CHC)11.346 Pedro Martínez+ (BOS)9.932
2002Randy Johnson+* (ARI)11.562 Pedro Martínez+ (BOS)10.791
2001Randy Johnson+* (ARI)13.410 Hideo Nomo (BOS)10.000
2000Randy Johnson+* (ARI)12.559 Pedro Martínez+ (BOS)11.779
1999Randy Johnson+* (ARI)12.059 Pedro Martínez+ (BOS)13.205
1998Kerry Wood (CHC)12.582 Roger Clemens (TOR)10.393
1997Pedro Martínez+ (MON)11.374 Randy Johnson+* (SEA)12.296
1996John Smoltz+ (ATL)9.792 Roger Clemens (BOS)9.532
1995Hideo Nomo (LAD)11.101 Randy Johnson+* (SEA)12.345
1994Andy Benes (SDP)9.870 Randy Johnson+* (SEA)10.674
1993José Rijo (CIN)7.939 Randy Johnson+* (SEA)10.856
1992David Cone (NYM)9.793 Randy Johnson+* (SEA)10.312
1991David Cone (NYM)9.322 Nolan Ryan+ (TEX)10.561
1990David Cone (NYM)9.907 Nolan Ryan+ (TEX)10.235
1989Mark Langston* (MON)8.915 Nolan Ryan+ (TEX)11.319
1988Nolan Ryan+ (HOU)9.327 Roger Clemens (BOS)9.920
1987Nolan Ryan+ (HOU)11.480 Mark Langston* (SEA)8.669
1986Mike Scott (HOU)10.002 Mark Langston* (SEA)9.213
1985Sid Fernandez* (NYM)9.511 Floyd Bannister* (CHW)8.459
1984Dwight Gooden (NYM)11.394 Mark Langston* (SEA)8.160
1983Steve Carlton+* (PHI)8.725 Floyd Bannister* (CHW)7.992
1982Mario Soto (CIN)9.571 Dave Righetti* (NYY)8.016
1981Steve Carlton+* (PHI)8.479 Dave Righetti* (NYY)7.604
1980Mario Soto (CIN)8.606 Len Barker (CLE)6.832
1979J.R. Richard (HOU)9.636 Nolan Ryan+ (CAL)9.013
1978J.R. Richard (HOU)9.904 Nolan Ryan+ (CAL)9.972
1977Jerry Koosman* (NYM)7.624 Nolan Ryan+ (CAL)10.264
1976Tom Seaver+ (NYM)7.804 Nolan Ryan+ (CAL)10.351
1975John Montefusco (SFG)7.941 Frank Tanana* (CAL)9.408
1974Tom Seaver+ (NYM)7.665 Nolan Ryan+ (CAL)9.929
1973Tom Seaver+ (NYM)7.790 Nolan Ryan+ (CAL)10.574
1972Tom Seaver+ (NYM)8.553 Nolan Ryan+ (CAL)10.426
1971Tom Seaver+ (NYM)9.084 Vida Blue* (OAK)8.683
1970Tom Seaver+ (NYM)8.763 Sam McDowell* (CLE)8.970
1969Tom Griffin (HOU)9.558 Sam McDowell* (CLE)8.811
1968Bill Singer (LAD)7.970 Sam McDowell* (CLE)9.468
1967Gary Nolan (CIN)8.179 Luis Tiant (CLE)9.225
1966Sandy Koufax+* (LAD)8.833 Sam McDowell* (CLE)10.420
1965Sandy Koufax+* (LAD)10.242 Sam McDowell* (CLE)10.714
1964Sandy Koufax+* (LAD)9.000 Sam McDowell* (CLE)9.190
1963Jim Maloney (CIN)9.527 Al Downing* (NYY)8.761
1962Sandy Koufax+* (LAD)10.546 Juan Pizarro* (CHW)7.657
1961Sandy Koufax+* (LAD)9.469 Juan Pizarro* (CHW)8.692
1960Sandy Koufax+* (LAD)10.131 Jim Bunning+ (DET)7.179
1959Don Drysdale+ (LAD)8.047 Herb Score* (CLE)8.234
1958Sam Jones (STL)8.100 Camilo Pascual (WSH)7.410
1957Sam Jones (STL)7.588 Bob Turley (NYY)7.758
1956Sam Jones (CHC)8.396 Herb Score* (CLE)9.493
1955Sam Jones (CHC)7.374 Herb Score* (CLE)9.699
1954Harvey Haddix* (STL)6.377 Billy Pierce* (CHW)7.060
1953Vinegar Bend Mizell* (STL)6.941 Billy Pierce* (CHW)6.170
1952Vinegar Bend Mizell* (STL)6.916 Mickey McDermott* (BOS)6.500
1951Mel Queen (PIT)6.576 Mickey McDermott* (BOS)6.645
1950Ewell Blackwell (CIN)6.483 Early Wynn+ (CLE)6.023
1949Don Newcombe (BRO)5.488 Tommy Byrne* (NYY)5.923
1948Harry Brecheen* (STL)5.747 Lou Brissie* (PHA)5.892 NN2: Barney Brown* (PS)6.988NAL: Gene Collins* (KCM)9.964
1947Ewell Blackwell (CIN)6.363 Bob Feller+ (CLE)5.900 NN2: Bob Romby* (BEG)8.003NAL: Dan Bankhead (MRS)8.124
1946Kirby Higbe (BRO)5.725 Hal Newhouser+* (DET)8.457 NN2: Leon Day+ (NE)7.376NAL: Connie Johnson (KCM)8.379
1945Preacher Roe* (PIT)5.668 Hal Newhouser+* (DET)6.089 NN2: Luis Tiant* (NYC)8.679NAL: Walter McCoy (CAG)8.128
1944Max Lanier* (STL)5.657 Hal Newhouser+* (DET)5.388 NN2: Luis Tiant* (NYC)7.685NAL: Satchel Paige+ (KCM)9.610
1943Johnny Vander Meer* (CIN)5.419 Allie Reynolds (CLE)6.841 NN2: Lefty Boone* (HAR)10.125NAL: Alvin Gipson (BBB)7.575
1942Johnny Vander Meer* (CIN)6.861 Hal Newhouser+* (DET)5.047 NN2: Leon Day+ (2TM)8.330NAL: Connie Johnson (KCM)8.259
1941Johnny Vander Meer* (CIN)8.032 Bob Feller+ (CLE)6.822 NN2: Dave Barnhill (NYC)8.019NAL: Lefty Boone* (SNS)11.753
1940Cliff Melton* (NYG)4.914 Bob Feller+ (CLE)7.333 NN2: Jimmy Hill* (NE)6.315NAL: Hilton Smith+ (KCM)8.953
1939Mort Cooper (STL)5.554 Bob Feller+ (CLE)7.463 NN2: Luis Tiant* (NYC)8.217NAL: Lefty Bowe* (CAG)9.067
1938Carl Hubbell+* (NYG)5.229 Bob Feller+ (CLE)7.779 NN2: Barney Morris (PC)6.936NAL: Frank Bradley (KCM)9.994
1937Van Mungo (BRO)6.820 Lefty Gomez+* (NYY)6.273 NN2: Tom Parker (HG)6.522NAL: Johnny Markham (KCM)8.874
1936Van Mungo (BRO)6.873 Johnny Allen (CLE)6.111 NN2: Johnny Taylor (NYC)9.115
1935Van Mungo (BRO)6.005 Johnny Allen (NYY)6.090 NN2: Frank Blake* (NYC)8.945
1934Paul Dean (STL)5.786 Red Ruffing+ (NYY)5.231 NN2: Satchel Paige+ (PC)9.391
1933Dizzy Dean+ (STL)6.113 Lefty Gomez+* (NYY)6.251 NN2: Satchel Paige+ (PC)8.809
1932Dizzy Dean+ (STL)6.010 Red Ruffing+ (NYY)6.602 EWL: Bert Hunter (2TM)6.363NSL: Bill Harvey* (2TM)6.959
1931Dazzy Vance+ (BRO)6.174 Bump Hadley (WSH)6.212 NNL: Elbert Williams (2TM)7.214
1930Bill Hallahan* (STL)6.712 Lefty Grove+* (PHA)6.464 NNL: Army Cooper* (KCM)8.748
1929Pat Malone (CHC)5.596 Lefty Grove+* (PHA)5.557 ANL: Joe Williams+ (HG)5.712NNL: Satchel Paige+ (BBB)8.674
1928Dazzy Vance+ (BRO)6.421 George Earnshaw (PHA)6.651 NNL: Satchel Paige+ (BBB)8.250ECL: Luther Farrell* (AC)6.315
1927Dazzy Vance+ (BRO)6.059 Lefty Grove+* (PHA)5.970 NNL: Satchel Paige+ (BBB)8.599ECL: Luther Farrell* (AC)5.663
1926Dazzy Vance+ (BRO)7.456 Lefty Grove+* (PHA)6.767 NNL: Webster McDonald (CAG)5.957ECL: Claude Grier* (AC)7.279
1925Dazzy Vance+ (BRO)7.496 Lefty Grove+* (PHA)5.299 NNL: Percy Miller* (SLS)5.899ECL: Claude Grier* (2TM)6.450
1924Dazzy Vance+ (BRO)7.648 Walter Johnson+ (WSH)5.121 NNL: Bill Foster+* (2TM)7.155ECL: Oscar Levis (CSE)7.379
1923Dazzy Vance+ (BRO)6.325 Syl Johnson (DET)4.747 NNL: Archie Stewart (SLS)5.552ECL: Nip Winters* (HIL)7.246
1922Dazzy Vance+ (BRO)4.909 Guy Morton (CLE)4.530 NNL: Dave Brown* (CAG)5.981
1921Burleigh Grimes+ (BRO)4.049 Walter Johnson+ (WSH)4.875 NNL: Dave Brown* (CAG)6.824
1920Al Mamaux (BRO)4.767 Doc Ayers (DET)4.442 NNL: Bullet Rogan+ (KCM)7.092
1919Hod Eller (CIN)4.965 Eric Erickson (2TM)5.523
1918Hippo Vaughn* (CHC)4.588 Guy Morton (CLE)5.157
1917Hippo Vaughn* (CHC)5.936 Walter Johnson+ (WSH)5.190
1916Larry Cheney (BRO)5.905 Walter Johnson+ (WSH)5.551
1915Grover Alexander+ (PHI)5.764 Dutch Leonard* (BOS)5.695 FL: Fred Anderson (BUF)5.325
1914Ben Tincup (PHI)6.271 Dutch Leonard* (BOS)7.050 FL: Dave Davenport (SLM)5.926
1913Jeff Tesreau (NYG)5.330 Walter Johnson+ (WSH)6.321
1912Grover Alexander+ (PHI)5.655 Walter Johnson+ (WSH)7.390
1911Rube Marquard+* (NYG)7.682 Smoky Joe Wood (BOS)7.542
1910Louis Drucke (NYG)6.311 Walter Johnson+ (WSH)7.614
1909Orval Overall (CHC)6.474 Heinie Berger (CLE)5.903
1908Orval Overall (CHC)6.680 Rube Waddell+* (SLB)7.309
1907Red Ames (NYG)5.631 Rube Waddell+* (PHA)7.335
1906Red Ames (NYG)6.905 Rube Waddell+* (PHA)6.469
1905Red Ames (NYG)6.784 Rube Waddell+* (PHA)7.859
1904Hooks Wiltse* (NYG)5.739 Rube Waddell+* (PHA)8.201
1903Christy Mathewson+ (NYG)6.560 Rube Waddell+* (PHA)8.389
1902Doc White* (PHI)5.441 Rube Waddell+* (PHA)6.840
1901Tom Hughes (CHC)6.568 Ned Garvin (MLA)4.267
1900Rube Waddell+* (PIT)5.607
1899Cy Seymour* (NYG)4.763
1898Cy Seymour* (NYG)6.031
1897Cy Seymour* (NYG)4.898
1896Buttons Briggs (CHC)3.897
1895Amos Rusie+ (NYG)4.599
1894Amos Rusie+ (NYG)3.953
1893Amos Rusie+ (NYG)3.884
1892Brickyard Kennedy (BRO)5.089
1891Amos Rusie+ (NYG)6.062 AA: Jouett Meekin (LOU)5.742
1890Amos Rusie+ (NYG)5.594 AA: Toad Ramsey* (STL)6.634PL: John Ewing (NYI)4.882
1889Tim Keefe+ (NYG)5.563 AA: Jack Stivetts (STL)6.715
1888Tim Keefe+ (NYG)6.942 AA: Adonis Terry (BRO)6.369
1887Mark Baldwin (CHC)4.419 AA: Toad Ramsey* (LOU)5.695
1886Bill Stemmyer (BSN)6.169 AA: Matt Kilroy* (BAL)7.919
1885Lady Baldwin* (DTN)6.775 AA: Bobby Mathews (PHA)6.095
1884John Clarkson+ (CHC)7.780 AA: Hardie Henderson (BAL)7.088UA: Dupee Shaw* (BOS)8.810
1883Jim Whitney (BSN)6.041 AA: Tim Keefe+ (NYP)5.220
1882Bobby Mathews (BSN)4.832 AA: Harry Arundel (PIT)3.640
1881George Derby (DTN)3.857
1880Larry Corcoran (CHC)4.497
1879Bill McGunnigle (BUF)4.650
1878Bobby Mitchell* (CIN)5.738
1877Bobby Mitchell* (CIN)3.690
1876Tommy Bond (HAR)1.941
1875 NA: Jack Manning (BOS)2.125
1874 NA: Bobby Mathews (NYU)1.573
1873 NA: Bobby Mathews (NYU)1.605
1872 NA: Cherokee Fisher (BAL)1.636
1871 NA: Al Pratt (CLE)1.362