Mort Cooper had a 2-3 record with an ERA of 3.00 and 35 strikeouts in 6 appearances in the postseason in his career.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | M. Cooper | 1942 |  SLN | 2 | 0 | 1 | .000 | 2 | 5.54 | 9 | 0 | 0 | 0 | 13.0 | 17 | 8 | 10 | 1 | 4 | 0 | 0 | 0 | 59 | 0 | 6.23 | 2.77 | 2.25 | 0.69 | 15.3 | 6.8 | 1.62 | .356 | 6.92 | 11.77 | ||||
| 2 | | M. Cooper | 1943 | SLN | 2 | 1 | 1 | .500 | 2 | 2.81 | 10 | 1 | 0 | 0 | 16.0 | 11 | 5 | 5 | 1 | 3 | 0 | 0 | 0 | 62 | 1 | 5.63 | 1.69 | 3.33 | 0.56 | 16.1 | 4.8 | 0.88 | .208 | 2.81 | 6.19 | ||||
| 3 | | M. Cooper | 1944 | SLN | 2 | 1 | 1 | .500 | 2 | 1.13 | 16 | 1 | 1 | 0 | 16.0 | 9 | 2 | 2 | 1 | 5 | 0 | 0 | 0 | 62 | 0 | 9.00 | 2.81 | 3.20 | 0.56 | 25.8 | 8.1 | 0.88 | .200 | 1.13 | 5.06 | ||||
| Total | 6 | 2 | 3 | .400 | 6 | 3.00 | 35 | 2 | 1 | 0 | 45.0 | 37 | 15 | 17 | 3 | 12 | 0 | 0 | 0 | 183 | 1 | 7.00 | 2.40 | 2.92 | 0.60 | 19.1 | 6.6 | 1.09 | .256 | 3.40 | 7.40 |
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