Jon Lester had a record of 9-7 with an ERA of 2.51 and 133 strikeouts in 26 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. Lester | 2007 |  BOS | 3 | 1 | 0 | 1.000 | 1 | 1.93 | 8 | 0 | 0 | 0 | 9.1 | 6 | 2 | 2 | 1 | 4 | 0 | 2 | 0 | 38 | 0 | 7.71 | 3.86 | 2.00 | 0.96 | 21.1 | 10.5 | 1.07 | .200 | 1.93 | 5.79 | ||||
| 2 | | J. Lester | 2008 | BOS | 4 | 1 | 2 | .333 | 4 | 2.36 | 26 | 0 | 0 | 0 | 26.2 | 24 | 7 | 9 | 3 | 5 | 0 | 0 | 0 | 109 | 0 | 8.78 | 1.69 | 5.20 | 1.01 | 23.9 | 4.6 | 1.09 | .280 | 3.04 | 8.10 | ||||
| 3 | | J. Lester | 2009 | BOS | 1 | 0 | 1 | .000 | 1 | 4.50 | 5 | 0 | 0 | 0 | 6.0 | 4 | 3 | 3 | 1 | 4 | 0 | 0 | 0 | 28 | 0 | 7.50 | 6.00 | 1.25 | 1.50 | 17.9 | 14.3 | 1.33 | .167 | 4.50 | 6.00 | ||||
| 4 | | J. Lester | 2013 | BOS | 5 | 4 | 1 | .800 | 5 | 1.56 | 29 | 0 | 0 | 0 | 34.2 | 25 | 6 | 6 | 3 | 8 | 2 | 0 | 0 | 134 | 0 | 7.53 | 2.08 | 3.63 | 0.78 | 21.6 | 6.0 | 0.95 | .239 | 1.56 | 6.49 | ||||
| 5 |  | J. Lester | 2014 |  OAK | 1 | 0 | 0 | 1 | 7.36 | 5 | 0 | 0 | 0 | 7.1 | 8 | 6 | 6 | 0 | 2 | 0 | 0 | 0 | 31 | 0 | 6.14 | 2.45 | 2.50 | 0.00 | 16.1 | 6.5 | 1.36 | .333 | 7.36 | 9.82 | |||||
| 6 |  | J. Lester | 2015 |  CHC | 2 | 0 | 2 | .000 | 2 | 4.50 | 14 | 0 | 0 | 0 | 14.0 | 13 | 7 | 7 | 3 | 2 | 0 | 0 | 0 | 56 | 2 | 9.00 | 1.29 | 7.00 | 1.93 | 25.0 | 3.6 | 1.07 | .270 | 4.50 | 8.36 | ||||
| 7 | | J. Lester | 2016 | CHC | 6 | 3 | 1 | .750 | 5 | 2.02 | 30 | 0 | 0 | 0 | 35.2 | 27 | 8 | 9 | 3 | 6 | 1 | 0 | 0 | 136 | 1 | 7.57 | 1.51 | 5.00 | 0.76 | 22.1 | 4.4 | 0.93 | .250 | 2.27 | 6.81 | ||||
| 8 | | J. Lester | 2017 | CHC | 3 | 0 | 0 | 2 | 1.88 | 7 | 0 | 0 | 0 | 14.1 | 6 | 3 | 3 | 1 | 8 | 0 | 0 | 0 | 55 | 1 | 4.40 | 5.02 | 0.88 | 0.63 | 12.7 | 14.5 | 0.98 | .128 | 1.88 | 3.77 | |||||
| 9 | | J. Lester | 2018 | CHC | 1 | 0 | 0 | 1 | 1.50 | 9 | 0 | 0 | 0 | 6.0 | 4 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 23 | 0 | 13.50 | 1.50 | 9.00 | 0.00 | 39.1 | 4.3 | 0.83 | .308 | 1.50 | 6.00 | |||||
| Total | 26 | 9 | 7 | .563 | 22 | 2.51 | 133 | 0 | 0 | 0 | 154.0 | 117 | 43 | 46 | 15 | 40 | 3 | 2 | 0 | 610 | 4 | 7.77 | 2.34 | 3.33 | 0.88 | 21.8 | 6.6 | 1.02 | .243 | 2.69 | 6.84 |
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