50 pitchers are tied for the worst career win percentage in the postseason when pitching in 10+ games, at .000. The first three are Miguel Castro, Zach Eflin and Robert Suarez.
| NAME | W% | G | W | L | 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. Castro | .000 | 10 | 0 | 1 | 0 | 7.88 | 6 | 0 | 0 | 0 | 8.0 | 7 | 7 | 7 | 1 | 5 | 0 | 2 | 1 | 36 | 1 | 6.75 | 5.63 | 1.20 | 1.13 | 16.7 | 13.9 | 1.50 | .250 | 7.88 | 7.88 | ||||
| 2 | | Z. Eflin | .000 | 12 | 0 | 1 | 2 | 4.58 | 18 | 0 | 0 | 1 | 19.2 | 26 | 10 | 10 | 3 | 5 | 1 | 5 | 1 | 87 | 0 | 8.24 | 2.29 | 3.60 | 1.37 | 20.7 | 5.7 | 1.58 | .383 | 4.58 | 11.90 | ||||
| 3 | | R. Suarez | .000 | 10 | 0 | 1 | 0 | 2.19 | 11 | 0 | 0 | 2 | 12.1 | 8 | 3 | 3 | 2 | 2 | 0 | 4 | 2 | 45 | 0 | 8.03 | 1.46 | 5.50 | 1.46 | 24.4 | 4.4 | 0.81 | .200 | 2.19 | 5.84 | ||||
| 4 | | B. Raley | .000 | 15 | 0 | 1 | 0 | 4.73 | 15 | 0 | 0 | 0 | 13.1 | 11 | 7 | 7 | 0 | 9 | 2 | 3 | 1 | 61 | 0 | 10.13 | 6.08 | 1.67 | 0.00 | 24.6 | 14.8 | 1.50 | .314 | 4.73 | 7.43 | ||||
| 5 | | P. Maton | .000 | 26 | 0 | 1 | 0 | 2.57 | 28 | 0 | 0 | 0 | 28.0 | 22 | 8 | 8 | 5 | 9 | 1 | 1 | 1 | 114 | 0 | 9.00 | 2.89 | 3.11 | 1.61 | 24.6 | 7.9 | 1.11 | .239 | 2.57 | 7.07 | ||||
| 6 |  | L. Jackson | .000 | 15 | 0 | 1 | 0 | 6.07 | 17 | 0 | 0 | 0 | 13.1 | 18 | 9 | 10 | 3 | 6 | 2 | 1 | 1 | 65 | 0 | 11.48 | 4.05 | 2.83 | 2.03 | 26.2 | 9.2 | 1.80 | .405 | 6.75 | 12.15 | ||||
| 7 |  | J. Loáisiga | .000 | 13 | 0 | 1 | 0 | 3.60 | 10 | 0 | 0 | 0 | 15.0 | 15 | 6 | 8 | 1 | 9 | 1 | 2 | 0 | 67 | 2 | 6.00 | 5.40 | 1.11 | 0.60 | 14.9 | 13.4 | 1.60 | .304 | 4.80 | 9.00 | ||||
| 8 | | C. Martin | .000 | 15 | 0 | 1 | 0 | 1.88 | 10 | 0 | 0 | 1 | 14.1 | 12 | 3 | 3 | 2 | 2 | 1 | 2 | 0 | 58 | 0 | 6.28 | 1.26 | 5.00 | 1.26 | 17.2 | 3.4 | 0.98 | .233 | 1.88 | 7.53 | ||||
| 9 | | B. Graterol | .000 | 25 | 0 | 2 | 0 | 1.85 | 16 | 0 | 0 | 1 | 24.1 | 15 | 5 | 6 | 0 | 6 | 2 | 2 | 0 | 96 | 0 | 5.92 | 2.22 | 2.67 | 0.00 | 16.7 | 6.3 | 0.86 | .208 | 2.22 | 5.55 | ||||
| 10 |  | D. Floro | .000 | 14 | 0 | 1 | 0 | 4.38 | 15 | 0 | 0 | 0 | 12.1 | 11 | 6 | 8 | 1 | 5 | 0 | 3 | 2 | 51 | 0 | 10.95 | 3.65 | 3.00 | 0.73 | 29.4 | 9.8 | 1.30 | .333 | 5.84 | 8.03 | ||||
| 11 |  | J. Hader | .000 | 18 | 0 | 2 | 0 | 1.64 | 33 | 0 | 0 | 5 | 22.0 | 14 | 4 | 5 | 1 | 6 | 1 | 11 | 0 | 84 | 0 | 13.50 | 2.45 | 5.50 | 0.41 | 39.3 | 7.1 | 0.91 | .302 | 2.05 | 5.73 | ||||
| 12 | | A. Ottavino | .000 | 18 | 0 | 1 | 0 | 5.68 | 12 | 0 | 0 | 0 | 12.2 | 13 | 8 | 9 | 2 | 10 | 1 | 3 | 1 | 64 | 3 | 8.53 | 7.11 | 1.20 | 1.42 | 18.8 | 15.6 | 1.82 | .282 | 6.39 | 9.24 | ||||
| 13 | | M. Clevinger | .000 | 10 | 0 | 1 | 4 | 7.47 | 19 | 0 | 0 | 0 | 15.2 | 17 | 13 | 15 | 5 | 18 | 1 | 3 | 0 | 83 | 2 | 10.91 | 10.34 | 1.06 | 2.87 | 22.9 | 21.7 | 2.23 | .300 | 8.62 | 9.77 | ||||
| 14 | | J. Jeffress | .000 | 11 | 0 | 1 | 0 | 6.75 | 14 | 0 | 0 | 1 | 10.2 | 20 | 8 | 9 | 3 | 5 | 0 | 3 | 0 | 56 | 0 | 11.81 | 4.22 | 2.80 | 2.53 | 25.0 | 8.9 | 2.34 | .500 | 7.59 | 16.88 | ||||
| 15 | | J. Familia | .000 | 14 | 0 | 1 | 0 | 2.16 | 11 | 0 | 0 | 5 | 16.2 | 7 | 4 | 5 | 2 | 3 | 0 | 11 | 0 | 60 | 0 | 5.94 | 1.62 | 3.67 | 1.08 | 18.3 | 5.0 | 0.60 | .114 | 2.70 | 3.78 | ||||
| 16 |  | W. Harris | .000 | 23 | 0 | 2 | 0 | 4.08 | 16 | 0 | 0 | 1 | 17.2 | 23 | 8 | 9 | 3 | 3 | 0 | 3 | 0 | 77 | 3 | 8.15 | 1.53 | 5.33 | 1.53 | 20.8 | 3.9 | 1.47 | .364 | 4.58 | 11.72 | ||||
| 17 | | A. Reed | .000 | 13 | 0 | 1 | 0 | 6.10 | 4 | 0 | 0 | 0 | 10.1 | 10 | 7 | 8 | 0 | 4 | 0 | 1 | 3 | 46 | 0 | 3.48 | 3.48 | 1.00 | 0.00 | 8.7 | 8.7 | 1.35 | .263 | 6.97 | 8.71 | ||||
| 18 | | D. Otero | .000 | 12 | 0 | 1 | 0 | 3.07 | 5 | 0 | 0 | 0 | 14.2 | 15 | 5 | 5 | 2 | 1 | 0 | 2 | 0 | 57 | 0 | 3.07 | 0.61 | 5.00 | 1.23 | 8.8 | 1.8 | 1.09 | .265 | 3.07 | 9.20 | ||||
| 19 |  | K. Siegrist | .000 | 12 | 0 | 1 | 0 | 5.00 | 8 | 0 | 0 | 0 | 9.0 | 10 | 5 | 6 | 4 | 1 | 0 | 1 | 0 | 39 | 2 | 8.00 | 1.00 | 8.00 | 4.00 | 20.5 | 2.6 | 1.22 | .231 | 6.00 | 10.00 | ||||
| 20 | | J. Smith | .000 | 18 | 0 | 1 | 0 | 2.57 | 13 | 0 | 0 | 0 | 14.0 | 8 | 4 | 4 | 2 | 3 | 0 | 4 | 1 | 54 | 0 | 8.36 | 1.93 | 4.33 | 1.29 | 24.1 | 5.6 | 0.79 | .167 | 2.57 | 5.14 | ||||
| 21 |  | B. Workman | .000 | 10 | 0 | 1 | 0 | 4.66 | 7 | 0 | 0 | 0 | 9.2 | 14 | 5 | 6 | 2 | 6 | 0 | 0 | 1 | 48 | 0 | 6.52 | 5.59 | 1.17 | 1.86 | 14.6 | 12.5 | 2.07 | .364 | 5.59 | 13.03 | ||||
| 22 | | T. Clippard | .000 | 14 | 0 | 1 | 0 | 4.26 | 11 | 0 | 0 | 0 | 12.2 | 9 | 6 | 6 | 2 | 5 | 0 | 1 | 0 | 53 | 1 | 7.82 | 3.55 | 2.20 | 1.42 | 20.8 | 9.4 | 1.11 | .200 | 4.26 | 6.39 | ||||
| 23 |  | S. Doolittle | .000 | 20 | 0 | 1 | 0 | 2.42 | 23 | 0 | 0 | 3 | 22.1 | 17 | 6 | 8 | 2 | 3 | 0 | 8 | 0 | 87 | 0 | 9.27 | 1.21 | 7.67 | 0.81 | 26.4 | 3.4 | 0.90 | .254 | 3.22 | 6.85 | ||||
| 24 | | J. McGee | .000 | 13 | 0 | 1 | 0 | 5.00 | 8 | 0 | 0 | 0 | 9.0 | 9 | 5 | 5 | 2 | 4 | 1 | 5 | 1 | 41 | 0 | 8.00 | 4.00 | 2.00 | 2.00 | 19.5 | 9.8 | 1.44 | .269 | 5.00 | 9.00 | ||||
| 25 | | F. Salas | .000 | 18 | 0 | 1 | 0 | 3.54 | 18 | 0 | 0 | 0 | 20.1 | 16 | 8 | 10 | 2 | 4 | 0 | 3 | 1 | 83 | 1 | 7.97 | 1.77 | 4.50 | 0.89 | 21.7 | 4.8 | 0.98 | .237 | 4.43 | 7.08 | ||||
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