Rube Walberg had a record of 1-1 with an ERA of 1.93 and 15 strikeouts in 5 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 |  | R. Walberg | 1929 |  PHA | 2 | 1 | 0 | 1.000 | 0 | 0.00 | 8 | 0 | 0 | 0 | 6.1 | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 22 | 0 | 11.37 | 0.00 | 0.00 | 36.4 | 0.0 | 0.47 | .214 | 1.42 | 4.26 | |||||
| 2 | | R. Walberg | 1930 | PHA | 1 | 0 | 1 | .000 | 1 | 3.86 | 3 | 0 | 0 | 0 | 4.2 | 4 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 18 | 0 | 5.79 | 1.93 | 3.00 | 1.93 | 16.7 | 5.6 | 1.07 | .231 | 3.86 | 7.71 | ||||
| 3 | | R. Walberg | 1931 | PHA | 2 | 0 | 0 | 0 | 3.00 | 4 | 0 | 0 | 0 | 3.0 | 3 | 1 | 1 | 0 | 2 | 0 | 1 | 0 | 12 | 0 | 12.00 | 6.00 | 2.00 | 0.00 | 33.3 | 16.7 | 1.67 | .500 | 3.00 | 9.00 | |||||
| Total | 5 | 1 | 1 | .500 | 1 | 1.93 | 15 | 0 | 0 | 0 | 14.0 | 10 | 3 | 4 | 1 | 3 | 0 | 2 | 0 | 52 | 0 | 9.64 | 1.93 | 5.00 | 0.64 | 28.8 | 5.8 | 0.93 | .273 | 2.57 | 6.43 |
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