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Progressive Leaders & Records for Strikeouts per 9 IP


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

+ - Indicates Hall of Famer. Bold indicates active player.

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

Minimum of 1000 IP, 3000 PA and 100 decisions for career and active leaderboards for rate statistics.

This table lists the career, single-season, active, yearly (meaning perfomances solely from that year) leaders following each season of Major League Baseball. Note that a player is considered active between the first and last season of their career. Entries under Single-Season from 1871-1875 are not carried forward past 1875. Entries under Career and Active do include totals from the 1871-1875 seasons.

Year CareerStrikeouts/9  Single-SeasonStrikeouts/9  ActiveStrikeouts/9  YearlyStrikeouts/9
1871 Al Pratt 1.3620 Al Pratt 1.3620
1872 Cherokee Fisher 1.6314 Cherokee Fisher 1.6314
1873 Bobby Mathews 1.3005 Cherokee Fisher 1.6314 Bobby Mathews 1.3005 Bobby Mathews 1.5237
1874 Bobby Mathews 0.8857 Cherokee Fisher 1.6314 Bobby Mathews 0.8857 Bill Stearns 0.7683
1875 Bobby Mathews 0.6764 Henry Luff 1.6794 Bobby Mathews 0.6764 Henry Luff 1.6794
1876 George Bradley 0.9092 Tommy Bond 1.9412 George Bradley 0.9092 Tommy Bond 1.9412
1877 Jim Devlin 1.7488 Bobby Mitchell 3.6900 Jim Devlin 1.7488 Bobby Mitchell 3.6900
1878 Terry Larkin 2.2943 Bobby Mitchell 5.7375 Terry Larkin 2.2943 Bobby Mitchell 5.7375
1879 Will White 3.1251 Bobby Mitchell 5.7375 Will White 3.1251 Bill McGunnigle 4.6500
1880 John Ward+ 3.4730 Bobby Mitchell 5.7375 John Ward+ 3.4730 Larry Corcoran 4.4972
1881 Lee Richmond 3.4746 Bobby Mitchell 5.7375 Lee Richmond 3.4746 George Derby 3.8571
1882 Larry Corcoran 4.1066 Bobby Mitchell 5.7375 Larry Corcoran 4.1066 Bobby Mathews 4.8316
1883 Jim Whitney 4.1599 Jim Whitney 6.0409 Jim Whitney 4.1599 Jim Whitney 6.0409
1884 Hugh Daily 6.1057 Hugh Daily 8.6824 Hugh Daily 6.1057 Hugh Daily 8.6824
1885 Hugh Daily 5.8785 Hugh Daily 8.6824 Hugh Daily 5.8785 Lady Baldwin 6.7751
1886 Hugh Daily 5.7585 Hugh Daily 8.6824 Hugh Daily 5.7585 Matt Kilroy 7.9194
1887 Toad Ramsey 6.8635 Hugh Daily 8.6824 Toad Ramsey 6.8635 Toad Ramsey 5.6952
1888 Toad Ramsey 6.6741 Hugh Daily 8.6824 Toad Ramsey 6.6741 Tim Keefe+ 6.9417
1889 Toad Ramsey 6.4623 Hugh Daily 8.6824 Toad Ramsey 6.4623 Jack Stivetts 6.7148
1890 Toad Ramsey 6.4908 Hugh Daily 8.6824 Toad Ramsey 6.4908 Toad Ramsey 6.6338
1891 Toad Ramsey 6.4908 Hugh Daily 8.6824 Jack Stivetts 5.9172 Amos Rusie+ 6.0620
1892 Toad Ramsey 6.4908 Hugh Daily 8.6824 Amos Rusie+ 5.3571 Brickyard Kennedy 5.0890
1893 Toad Ramsey 6.4908 Hugh Daily 8.6824 Amos Rusie+ 5.0468 Amos Rusie+ 3.8838
1894 Toad Ramsey 6.4908 Hugh Daily 8.6824 Amos Rusie+ 4.8690 Amos Rusie+ 3.9527
1895 Toad Ramsey 6.4908 Hugh Daily 8.6824 Amos Rusie+ 4.8350 Amos Rusie+ 4.5992
1896 Toad Ramsey 6.4908 Hugh Daily 8.6824 Amos Rusie+ 4.8350 Buttons Briggs 3.8969
1897 Toad Ramsey 6.4908 Hugh Daily 8.6824 Amos Rusie+ 4.7354 Cy Seymour 4.8295
1898 Toad Ramsey 6.4908 Hugh Daily 8.6824 Amos Rusie+ 4.6301 Cy Seymour 6.0308
1899 Toad Ramsey 6.4908 Hugh Daily 8.6824 Amos Rusie+ 4.6301 Cy Seymour 4.7627
1900 Toad Ramsey 6.4908 Hugh Daily 8.6824 Cy Seymour 5.1053 Rube Waddell+ 5.6070
1901 Toad Ramsey 6.4908 Hugh Daily 8.6824 Cy Seymour 5.1053 Tom Hughes 6.5676
1902 Toad Ramsey 6.4908 Hugh Daily 8.6824 Cy Seymour 5.1079 Rube Waddell+ 6.8396
1903 Rube Waddell+ 6.7344 Hugh Daily 8.6824 Rube Waddell+ 6.7344 Rube Waddell+ 8.3889
1904 Rube Waddell+ 7.1000 Hugh Daily 8.6824 Rube Waddell+ 7.1000 Rube Waddell+ 8.2010
1905 Rube Waddell+ 7.2338 Hugh Daily 8.6824 Rube Waddell+ 7.2338 Rube Waddell+ 7.8590
1906 Rube Waddell+ 7.1363 Hugh Daily 8.6824 Rube Waddell+ 7.1363 Red Ames 6.9049
1907 Rube Waddell+ 7.1596 Hugh Daily 8.6824 Rube Waddell+ 7.1596 Rube Waddell+ 7.3349
1908 Rube Waddell+ 7.1754 Hugh Daily 8.6824 Rube Waddell+ 7.1754 Rube Waddell+ 7.3092
1909 Rube Waddell+ 7.0689 Hugh Daily 8.6824 Rube Waddell+ 7.0689 Orval Overall 6.4737
1910 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Rube Waddell+ 7.0387 Walter Johnson+ 7.6135
1911 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Walter Johnson+ 6.0760 Rube Marquard+ 7.6819
1912 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.5860 Walter Johnson+ 7.3902
1913 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.7147 Walter Johnson+ 6.3208
1914 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.5894 Dutch Leonard 7.0504
1915 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.2581 Pete Alexander+ 5.7635
1916 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.2581 Larry Cheney 5.9051
1917 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.2023 Hippo Vaughn 5.9357
1918 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.2023 Guy Morton 5.1568
1919 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.1994 Eric Erickson 5.5227
1920 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Joe Wood 6.1970 Al Mamaux 4.7675
1921 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Walter Johnson+ 5.6721 Walter Johnson+ 4.8750
1922 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Walter Johnson+ 5.5375 Dazzy Vance+ 4.9091
1923 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Walter Johnson+ 5.4825 Dazzy Vance+ 6.3246
1924 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Walter Johnson+ 5.4636 Dazzy Vance+ 7.6476
1925 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.6109 Dazzy Vance+ 7.4962
1926 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.7206 Dazzy Vance+ 7.4556
1927 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.6057 Dazzy Vance+ 6.0585
1928 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.5778 George Earnshaw 6.6505
1929 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.3920 Pat Malone 5.5955
1930 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.3509 Bill Hallahan 6.7121
1931 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.3358 Bump Hadley 6.2115
1932 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.2679 Red Ruffing+ 6.6023
1933 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.2617 Lefty Gomez+ 6.2514
1934 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.2260 Paul Dean 5.7857
1935 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dazzy Vance+ 6.2039 Johnny Allen 6.0898
1936 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dizzy Dean+ 5.6981 Van Mungo 6.8727
1937 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dizzy Dean+ 5.6725 Van Mungo 6.8199
1938 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dizzy Dean+ 5.5480 Bob Feller+ 7.7791
1939 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Dizzy Dean+ 5.3953 Bob Feller+ 7.4629
1940 Bob Feller+ 7.9225 Hugh Daily 8.6824 Bob Feller+ 7.9225 Bob Feller+ 7.3330
1941 Bob Feller+ 7.6619 Hugh Daily 8.6824 Bob Feller+ 7.6619 Johnny Vander Meer 8.0324
1942 Bob Feller+ 7.6619 Hugh Daily 8.6824 Bob Feller+ 7.6619 Johnny Vander Meer 6.8607
1943 Bob Feller+ 7.6619 Hugh Daily 8.6824 Bob Feller+ 7.6619 Allie Reynolds 6.8406
1944 Bob Feller+ 7.6619 Hugh Daily 8.6824 Bob Feller+ 7.6619 Max Lanier 5.6568
1945 Bob Feller+ 7.6483 Hugh Daily 8.6824 Bob Feller+ 7.6483 Hal Newhouser+ 6.0894
1946 Bob Feller+ 7.8026 Hugh Daily 8.6824 Bob Feller+ 7.8026 Hal Newhouser+ 8.4567
1947 Bob Feller+ 7.5429 Hugh Daily 8.6824 Bob Feller+ 7.5429 Ewell Blackwell 6.3626
1948 Bob Feller+ 7.2845 Hugh Daily 8.6824 Bob Feller+ 7.2845 Lou Brissie 5.8918
1949 Bob Feller+ 7.0738 Hugh Daily 8.6824 Bob Feller+ 7.0738 Tommy Byrne 5.9235
1950 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Bob Feller+ 6.8429 Ewell Blackwell 6.4828
1951 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Bob Feller+ 6.6198 Mickey McDermott 6.6453
1952 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Bob Feller+ 6.4596 Vinegar Bend Mizell 6.9158
1953 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Bob Feller+ 6.2919 Vinegar Bend Mizell 6.9406
1954 Rube Waddell+ 7.0387 Hugh Daily 8.6824 Bob Feller+ 6.1970 Billy Pierce 7.0601
1955 Rube Waddell+ 7.0387 Herb Score 9.6994 Bob Feller+ 6.1202 Herb Score 9.6994
1956 Rube Waddell+ 7.0387 Herb Score 9.6994 Bob Feller+ 6.0698 Herb Score 9.4933
1957 Rube Waddell+ 7.0387 Herb Score 9.6994 Harvey Haddix 6.4503 Bob Turley 7.7580
1958 Rube Waddell+ 7.0387 Herb Score 9.6994 Bob Turley 7.0365 Sam Jones 8.1000
1959 Sam Jones 7.5921 Herb Score 9.6994 Sam Jones 7.5921 Herb Score 8.2344
1960 Sam Jones 7.5450 Sandy Koufax+ 10.1314 Sam Jones 7.5450 Sandy Koufax+ 10.1314
1961 Sam Jones 7.5299 Sandy Koufax+ 10.1314 Sam Jones 7.5299 Sandy Koufax+ 9.4694
1962 Sandy Koufax+ 9.2890 Sandy Koufax+ 10.5461 Sandy Koufax+ 9.2890 Sandy Koufax+ 10.5461
1963 Sandy Koufax+ 9.1955 Sandy Koufax+ 10.5461 Sandy Koufax+ 9.1955 Jim Maloney 9.5273
1964 Sandy Koufax+ 9.1693 Sandy Koufax+ 10.5461 Sandy Koufax+ 9.1693 Sam McDowell 9.1904
1965 Sandy Koufax+ 9.3493 Sam McDowell 10.7143 Sandy Koufax+ 9.3493 Sam McDowell 10.7143
1966 Sandy Koufax+ 9.2775 Sam McDowell 10.7143 Sandy Koufax+ 9.2775 Sam McDowell 10.4202
1967 Sam McDowell 9.5647 Sam McDowell 10.7143 Sam McDowell 9.5647 Luis Tiant 9.2246
1968 Sam McDowell 9.5448 Sam McDowell 10.7143 Sam McDowell 9.5448 Sam McDowell 9.4684
1969 Sam McDowell 9.4132 Sam McDowell 10.7143 Sam McDowell 9.4132 Tom Griffin 9.5575
1970 Sam McDowell 9.3420 Sam McDowell 10.7143 Sam McDowell 9.3420 Sam McDowell 8.9705
1971 Sandy Koufax+ 9.2775 Sam McDowell 10.7143 Sam McDowell 9.2105 Tom Seaver+ 9.0838
1972 Sandy Koufax+ 9.2775 Sam McDowell 10.7143 Sam McDowell 9.0277 Nolan Ryan+ 10.4261
1973 Nolan Ryan+ 9.6830 Sam McDowell 10.7143 Nolan Ryan+ 9.6830 Nolan Ryan+ 10.5736
1974 Nolan Ryan+ 9.7393 Sam McDowell 10.7143 Nolan Ryan+ 9.7393 Nolan Ryan+ 9.9289
1975 Nolan Ryan+ 9.5852 Sam McDowell 10.7143 Nolan Ryan+ 9.5852 Frank Tanana 9.4080
1976 Nolan Ryan+ 9.6977 Sam McDowell 10.7143 Nolan Ryan+ 9.6977 Nolan Ryan+ 10.3505
1977 Nolan Ryan+ 9.7735 Sam McDowell 10.7143 Nolan Ryan+ 9.7735 Nolan Ryan+ 10.2642
1978 Nolan Ryan+ 9.7923 Sam McDowell 10.7143 Nolan Ryan+ 9.7923 Nolan Ryan+ 9.9716
1979 Nolan Ryan+ 9.7279 Sam McDowell 10.7143 Nolan Ryan+ 9.7279 J.R. Richard 9.6363
1980 Nolan Ryan+ 9.5662 Sam McDowell 10.7143 Nolan Ryan+ 9.5662 Mario Soto 8.6060
1981 Nolan Ryan+ 9.5124 Sam McDowell 10.7143 Nolan Ryan+ 9.5124 Steve Carlton+ 8.4789
1982 Nolan Ryan+ 9.4593 Sam McDowell 10.7143 Nolan Ryan+ 9.4593 Mario Soto 9.5705
1983 Nolan Ryan+ 9.3996 Sam McDowell 10.7143 Nolan Ryan+ 9.3996 Steve Carlton+ 8.7250
1984 Nolan Ryan+ 9.4122 Dwight Gooden 11.3945 Nolan Ryan+ 9.4122 Dwight Gooden 11.3945
1985 Nolan Ryan+ 9.3353 Dwight Gooden 11.3945 Nolan Ryan+ 9.3353 Sid Fernandez 9.5108
1986 Nolan Ryan+ 9.3558 Dwight Gooden 11.3945 Nolan Ryan+ 9.3558 Mike Scott 10.0024
1987 Nolan Ryan+ 9.4598 Nolan Ryan+ 11.4803 Nolan Ryan+ 9.4598 Nolan Ryan+ 11.4803
1988 Nolan Ryan+ 9.4534 Nolan Ryan+ 11.4803 Nolan Ryan+ 9.4534 Roger Clemens 9.9205
1989 Nolan Ryan+ 9.5467 Nolan Ryan+ 11.4803 Nolan Ryan+ 9.5467 Nolan Ryan+ 11.3189
1990 Nolan Ryan+ 9.5748 Nolan Ryan+ 11.4803 Nolan Ryan+ 9.5748 Nolan Ryan+ 10.2353
1991 Nolan Ryan+ 9.6079 Nolan Ryan+ 11.4803 Nolan Ryan+ 9.6079 Nolan Ryan+ 10.5607
1992 Nolan Ryan+ 9.5893 Nolan Ryan+ 11.4803 Nolan Ryan+ 9.5893 Randy Johnson 10.3122
1993 Nolan Ryan+ 9.5481 Nolan Ryan+ 11.4803 Nolan Ryan+ 9.5481 Randy Johnson 10.8564
1994 Randy Johnson 9.6119 Nolan Ryan+ 11.4803 Randy Johnson 9.6119 Randy Johnson 10.6744
1995 Randy Johnson 10.0132 Randy Johnson 12.3453 Randy Johnson 10.0132 Randy Johnson 12.3453
1996 Randy Johnson 10.1124 Randy Johnson 12.3453 Randy Johnson 10.1124 John Smoltz 9.7924
1997 Randy Johnson 10.3806 Randy Johnson 12.3453 Randy Johnson 10.3806 Randy Johnson 12.2958
1998 Randy Johnson 10.5953 Kerry Wood 12.5820 Randy Johnson 10.5953 Kerry Wood 12.5820
1999 Randy Johnson 10.7720 Pedro Martinez 13.2047 Randy Johnson 10.7720 Pedro Martinez 13.2047
2000 Randy Johnson 10.9498 Pedro Martinez 13.2047 Randy Johnson 10.9498 Randy Johnson 12.5590
2001 Randy Johnson 11.1733 Randy Johnson 13.4099 Randy Johnson 11.1733 Randy Johnson 13.4099
2002 Randy Johnson 11.2069 Randy Johnson 13.4099 Randy Johnson 11.2069 Randy Johnson 11.5615
2003 Randy Johnson 11.1580 Randy Johnson 13.4099 Randy Johnson 11.1580 Kerry Wood 11.3460
2004 Randy Johnson 11.1191 Randy Johnson 13.4099 Randy Johnson 11.1191 Oliver Perez 10.9745
2005 Randy Johnson 10.9493 Randy Johnson 13.4099 Randy Johnson 10.9493 Mark Prior 10.1520
2006 Randy Johnson 10.7659 Randy Johnson 13.4099 Randy Johnson 10.7659 Jake Peavy 9.5634
2007 Randy Johnson 10.7757 Randy Johnson 13.4099 Randy Johnson 10.7757 Erik Bedard 10.9286
2008 Randy Johnson 10.6703 Randy Johnson 13.4099 Randy Johnson 10.6703 Tim Lincecum 10.5066
2009 Randy Johnson 10.6098 Randy Johnson 13.4099 Randy Johnson 10.6098 Tim Lincecum 10.4246

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