Jeff Suppan had a 3-4 record with an ERA of 3.63 and 36 strikeouts in 10 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 |  | J. Suppan | 2004 |  STL | 4 | 2 | 2 | .500 | 4 | 3.80 | 15 | 0 | 0 | 0 | 23.2 | 18 | 10 | 11 | 4 | 8 | 2 | 0 | 0 | 98 | 0 | 5.70 | 3.04 | 1.88 | 1.52 | 15.3 | 8.2 | 1.10 | .203 | 4.18 | 6.85 | ||||
| 2 | | J. Suppan | 2005 | STL | 1 | 0 | 0 | 1 | 1.80 | 5 | 0 | 0 | 0 | 5.0 | 3 | 1 | 1 | 1 | 3 | 0 | 0 | 0 | 21 | 0 | 9.00 | 5.40 | 1.67 | 1.80 | 23.8 | 14.3 | 1.20 | .167 | 1.80 | 5.40 | |||||
| 3 | | J. Suppan | 2006 | STL | 4 | 1 | 1 | .500 | 4 | 2.49 | 13 | 0 | 0 | 0 | 25.1 | 19 | 7 | 7 | 1 | 11 | 1 | 0 | 3 | 106 | 0 | 4.62 | 3.91 | 1.18 | 0.36 | 12.3 | 10.4 | 1.18 | .225 | 2.49 | 6.75 | ||||
| 4 |  | J. Suppan | 2008 |  MIL | 1 | 0 | 1 | .000 | 1 | 15.00 | 3 | 0 | 0 | 0 | 3.0 | 6 | 5 | 5 | 3 | 2 | 0 | 0 | 1 | 16 | 1 | 9.00 | 6.00 | 1.50 | 9.00 | 18.8 | 12.5 | 2.67 | .375 | 15.00 | 18.00 | ||||
| Total | 10 | 3 | 4 | .429 | 10 | 3.63 | 36 | 0 | 0 | 0 | 57.0 | 46 | 23 | 24 | 9 | 24 | 3 | 0 | 4 | 241 | 1 | 5.68 | 3.79 | 1.50 | 1.42 | 14.9 | 10.0 | 1.23 | .219 | 3.79 | 7.26 |
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