Grant Balfour had a 1-1 record with an ERA of 3.20, 15 strikeouts and 2 saves in 20 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 |  | G. Balfour | 2004 |  MIN | 2 | 0 | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 2.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 6.75 | 0.00 | 0.00 | 28.6 | 0.0 | 0.00 | .000 | 0.00 | 0.00 | ||||||
| 2 |  | G. Balfour | 2008 |  TBR | 10 | 0 | 0 | 0 | 6.23 | 7 | 0 | 0 | 0 | 8.2 | 11 | 6 | 6 | 2 | 8 | 1 | 2 | 3 | 46 | 1 | 7.27 | 8.31 | 0.88 | 2.08 | 15.2 | 17.4 | 2.19 | .321 | 6.23 | 11.42 | |||||
| 3 | | G. Balfour | 2010 | TBR | 3 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 3.2 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 12 | 0 | 2.45 | 0.00 | 0.00 | 8.3 | 0.0 | 0.55 | .182 | 0.00 | 4.91 | ||||||
| 4 |  | G. Balfour | 2012 |  OAK | 2 | 0 | 1 | .000 | 0 | 5.40 | 2 | 0 | 0 | 1 | 1.2 | 3 | 1 | 1 | 0 | 1 | 0 | 2 | 1 | 8 | 0 | 10.80 | 5.40 | 2.00 | 0.00 | 25.0 | 12.5 | 2.40 | .600 | 5.40 | 16.20 | ||||
| 5 | | G. Balfour | 2013 | OAK | 3 | 1 | 0 | 1.000 | 0 | 0.00 | 3 | 0 | 0 | 1 | 3.0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 10 | 0 | 9.00 | 3.00 | 3.00 | 0.00 | 30.0 | 10.0 | 0.33 | .000 | 0.00 | 0.00 | ||||
| Total | 20 | 1 | 1 | .500 | 0 | 3.20 | 15 | 0 | 0 | 2 | 19.2 | 16 | 7 | 7 | 2 | 10 | 1 | 8 | 4 | 83 | 1 | 6.86 | 4.58 | 1.50 | 0.92 | 18.1 | 12.0 | 1.32 | .255 | 3.20 | 7.32 |
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