Mark McGwire had a batting average of .217 with 28 hits, 5 home runs, 14 RBIs and 13 runs scored in 42 games in the postseason in his career.
| NAME | SEASON | TM | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | WRC | WRAA | WOBA | WRC+ | BRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | M. McGwire | 1988 |  OAK | 9 | 32 | 5 | 6 | 0 | 0 | 2 | 4 | 4 | 0 | 9 | 0 | 0 | 36 | 12 | 2 | 0 | 0 | 2 | 2 | .188 | .278 | .375 | .653 | |||||
| 2 | | M. McGwire | 1989 | OAK | 9 | 35 | 3 | 12 | 2 | 0 | 1 | 4 | 2 | 0 | 7 | 0 | 0 | 38 | 17 | 3 | 0 | 1 | 0 | 1 | .343 | .368 | .486 | .854 | |||||
| 3 | | M. McGwire | 1990 | OAK | 8 | 27 | 3 | 5 | 0 | 0 | 0 | 2 | 5 | 1 | 7 | 0 | 0 | 33 | 5 | 0 | 0 | 0 | 0 | 0 | .185 | .333 | .185 | .519 | |||||
| 4 | | M. McGwire | 1992 | OAK | 6 | 20 | 1 | 3 | 0 | 0 | 1 | 3 | 5 | 1 | 4 | 0 | 0 | 27 | 6 | 1 | 1 | 0 | 2 | 0 | .150 | .346 | .300 | .646 | |||||
| 5 |  | M. McGwire | 2000 |  STL | 6 | 4 | 1 | 1 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 6 | 4 | 1 | 0 | 0 | 2 | 0 | .250 | .500 | 1.000 | 1.500 | |||||
| 6 | | M. McGwire | 2001 | STL | 4 | 11 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 11 | 1 | 0 | 0 | 0 | 0 | 1 | .091 | .091 | .091 | .182 | |||||
| Total | 42 | 129 | 13 | 28 | 2 | 0 | 5 | 14 | 18 | 2 | 33 | 0 | 0 | 151 | 45 | 7 | 1 | 1 | 6 | 4 | .217 | .320 | .349 | .669 |
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