League by League Totals for Slugging Average

Ever wonder which league has the best slugging average? This is a comprehensive breakdown of both leagues showing the slugging average in each league and a major league average for every season since 1901. Raw averages are presented to further clarify the single season averages and provide added material for researchers.
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Slugging Average

League By League Averages
American League National League A.L. & N.L. Year
.371 (.37109) .348 (.34839) .360 (.35962) 1901
.369 (.36897) .318 (.31872) .344 (.34380) 1902
.344 (.34433) .349 (.34855) .347 (.34646) 1903
.321 (.32083) .322 (.32205) .321 (.32144) 1904
.314 (.31362) .332 (.33164) .323 (.32269) 1905
.318 (.31825) .310 (.31039) .314 (.31439) 1906
.310 (.30946) .309 (.30874) .309 (.30911) 1907
.304 (.30360) .306 (.30635) .305 (.30497) 1908
.309 (.30880) .314 (.31377) .311 (.31130) 1909
.313 (.31333) .338 (.33795) .326 (.32559) 1910
.358 (.35811) .356 (.35587) .357 (.35699) 1911
.348 (.34794) .369 (.36942) .359 (.35871) 1912
.336 (.33581) .354 (.35413) .345 (.34512) 1913
.323 (.32300) .334 (.33420) .329 (.32861) 1914
.326 (.32572) .331 (.33051) .328 (.32813) 1915
.324 (.32383) .328 (.32825) .326 (.32605) 1916
.320 (.32006) .328 (.32775) .324 (.32394) 1917
.323 (.32246) .328 (.32767) .325 (.32508) 1918
.359 (.35868) .337 (.33722) .348 (.34796) 1919
.387 (.38714) .357 (.35668) .372 (.37187) 1920
.408 (.40837) .397 (.39704) .403 (.40273) 1921
.398 (.39753) .404 (.40427) .401 (.40093) 1922
.388 (.38828) .395 (.39452) .391 (.39144) 1923
.397 (.39693) .392 (.39182) .394 (.39437) 1924
.408 (.40751) .414 (.41417) .411 (.41085) 1925
.392 (.39173) .386 (.38558) .389 (.38864) 1926
.399 (.39941) .386 (.38617) .393 (.39277) 1927
.397 (.39687) .397 (.39654) .397 (.39670) 1928
.407 (.40734) .426 (.42577) .417 (.41665) 1929
.421 (.42072) .448 (.44794) .435 (.43446) 1930
.396 (.39582) .387 (.38690) .391 (.39140) 1931
.405 (.40447) .396 (.39624) .400 (.40034) 1932
.390 (.39001) .362 (.36208) .376 (.37606) 1933
.399 (.39912) .394 (.39407) .397 (.39659) 1934
.402 (.40196) .392 (.39145) .397 (.39668) 1935
.421 (.42121) .386 (.38634) .404 (.40375) 1936
.415 (.41493) .382 (.38211) .399 (.39864) 1937
.415 (.41482) .376 (.37644) .396 (.39563) 1938
.408 (.40749) .386 (.38595) .397 (.39676) 1939
.407 (.40718) .376 (.37588) .392 (.39154) 1940
.389 (.38900) .361 (.36134) .375 (.37524) 1941
.357 (.35707) .343 (.34304) .350 (.35007) 1942
.341 (.34129) .347 (.34729) .344 (.34430) 1943
.353 (.35295) .363 (.36325) .358 (.35811) 1944
.346 (.34552) .364 (.36456) .355 (.35467) 1945
.364 (.36414) .356 (.35549) .360 (.35982) 1946
.365 (.36445) .390 (.39039) .378 (.37749) 1947
.382 (.38163) .383 (.38254) .382 (.38209) 1948
.379 (.37886) .389 (.38905) .384 (.38402) 1949
.403 (.40248) .401 (.40102) .402 (.40175) 1950
.381 (.38134) .390 (.38965) .386 (.38551) 1951
.366 (.36547) .374 (.37372) .370 (.36958) 1952
.383 (.38320) .411 (.41131) .397 (.39730) 1953
.373 (.37332) .407 (.40702) .390 (.39020) 1954
.381 (.38106) .407 (.40691) .394 (.39398) 1955
.394 (.39393) .401 (.40086) .397 (.39739) 1956
.382 (.38230) .400 (.39979) .391 (.39115) 1957
.383 (.38309) .405 (.40514) .394 (.39418) 1958
.384 (.38409) .400 (.39990) .392 (.39203) 1959
.388 (.38756) .388 (.38792) .388 (.38774) 1960
.395 (.39474) .405 (.40509) .399 (.39923) 1961
.394 (.39396) .393 (.39281) .393 (.39338) 1962
.380 (.37981) .364 (.36386) .372 (.37185) 1963
.382 (.38175) .374 (.37406) .378 (.37790) 1964
.369 (.36928) .374 (.37405) .372 (.37169) 1965
.369 (.36864) .384 (.38384) .376 (.37633) 1966
.351 (.35135) .363 (.36330) .357 (.35737) 1967
.339 (.33925) .341 (.34121) .340 (.34024) 1968
.369 (.36938) .369 (.36908) .369 (.36923) 1969
.379 (.37883) .392 (.39195) .385 (.38543) 1970
.364 (.36111) .366 (.36638) .365 (.36526) 1971
.343 (.34301) .365 (.36459) .354 (.35392) 1972
.382 (.38145) .376 (.37585) .379 (.37865) 1973
.372 (.37146) .367 (.36674) .369 (.36910) 1974
.379 (.37900) .369 (.36909) .374 (.37402) 1975
.361 (.36079) .361 (.36112) .361 (.36095) 1976
.405 (.40514) .396 (.39644) .401 (.40111) 1977
.385 (.38466) .372 (.37155) .379 (.37863) 1978
.408 (.40838) .385 (.38482) .398 (.39748) 1979
.399 (.39909) .375 (.37447) .388 (.38777) 1980
.373 (.37256) .364 (.36392) .369 (.36857) 1981
.402 (.40234) .373 (.37268) .389 (.38870) 1982
.401 (.40065) .376 (.37579) .389 (.38926) 1983
.398 (.39776) .369 (.36936) .385 (.39474) 1984
.406 (.40558) .374 (.37380) .391 (.39096) 1985
.408 (.40791) .380 (.37999) .395 (.39509) 1986
.426 (.42548) .404 (.40350) .415 (.41537) 1987
.391 (.39059) .363 (.36258) .378 (.37771) 1988
.384 (.38374) .365 (.36517) .375 (.37518) 1989
.388 (.38759) .383 (.38286) .385 (.38540) 1990
.395 (.39483) .373 (.37258) .385 (.38465) 1991
.385 (.38500) .368 (.36820) .377 (.37727) 1992
.408 (.40768) .399 (.39888) .403 (.40328) 1993
.434 (.43405) .415 (.41456) .424 (.42431) 1994
.427 (.42700) .408 (.40750) .417 (.41728) 1995
.445 (.44499) .408 (.40802) .427 (.42667) 1996
.428 (.42765) .411 (.41062) .419 (.41921) 1997
.431 (.43125) .410 (.41035) .420 (.42015) 1998
.439 (.43916) .429 (.42918) .434 (.43385) 1999
.443 (.44336) .432 (.43165) .437 (.43715) 2000
.428 (.42811) .425 (.42533) .427 (.42663) 2001
.424 (.42416) .410 (.41000) .417 (.41665) 2002
.428 (.42757) .420 (.42056) .424 (.42385) 2003
.433 (.43319) .423 (.42296) .428 (.42778) 2004

.424 (.42438)

.414 (.41407)

.419 (.41891)

2005

.437 (.43687)

.427 (.42745)

.432 (.43216)

2006

.423 (.42279)

.423 (.42261)

.422 (.42270)

2007

.420 (.42002)

.413 (.41289)

.416 (.41623)

2008
.428 (.42801) .409 (.40866) .418 (.41775) 2009
.407 (.40675) .399 (.39939) .403 (.40284) 2010
.408 (.40785) .391 (.39122) .399 (.39901) 2011
.411 (.41099) .400 (.40032) .405 (.40532) 2012

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2013
American League National League A.L. & N.L. Year

League By League Slugging Averages


Did you know that the record for the highest slugging average in the American League during the regular season was .445, set in 1996, and in the National League it was .432, set in 2000? Too easy?

Did you know that the record for the lowest slugging average in the American League during the regular season was .304, set in 1908, and in the National League it was .306, set in 1908? Still too easy?

During the 1960 season, the two leagues were seperated by only .0036. However, this is not the record. The closest the two leagues ever came was in 1969 when the leagues were seperated by .0030.
     
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