Javier Assad has played 4 seasons for the Cubs. He has 14 wins, 12 losses, an ERA of 3.47 and 250 strikeouts.
| 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. Assad | 2022 |  CHC | 9 | 2 | 2 | .500 | 8 | 3.11 | 30 | 0 | 0 | 0 | 37.2 | 35 | 13 | 14 | 4 | 20 | 0 | 0 | 0 | 166 | 1 | 7.17 | 4.78 | 1.50 | 0.96 | 18.1 | 12.0 | 1.46 | .277 | 3.35 | 78 | 4.49 | 114 | 8.36 | -2.3 |
| 2 | | J. Assad | 2023 | CHC | 32 | 5 | 3 | .625 | 10 | 3.05 | 94 | 0 | 0 | 0 | 109.1 | 93 | 37 | 38 | 13 | 41 | 3 | 9 | 1 | 449 | 3 | 7.74 | 3.38 | 2.29 | 1.07 | 20.9 | 9.1 | 1.23 | .268 | 3.13 | 72 | 4.29 | 100 | 7.66 | -0.1 |
| 3 | | J. Assad | 2024 | CHC | 29 | 7 | 6 | .538 | 29 | 3.73 | 124 | 0 | 0 | 0 | 147.0 | 143 | 61 | 64 | 20 | 63 | 5 | 0 | 0 | 638 | 5 | 7.59 | 3.86 | 1.97 | 1.22 | 19.4 | 9.9 | 1.40 | .289 | 3.92 | 93 | 4.63 | 116 | 8.76 | -11 |
| 4 | | J. Assad | 2025 | CHC | 1 | 0 | 1 | .000 | 1 | 9.00 | 2 | 0 | 0 | 0 | 4.0 | 8 | 4 | 4 | 1 | 1 | 1 | 0 | 0 | 21 | 0 | 4.50 | 2.25 | 2.00 | 2.25 | 9.5 | 4.8 | 2.25 | .438 | 9.00 | 221 | 6.85 | 171 | 18.00 | -1.3 |
| Total | 71 | 14 | 12 | .538 | 48 | 3.47 | 250 | 0 | 0 | 0 | 298.0 | 279 | 115 | 120 | 38 | 125 | 9 | 9 | 1 | 1,274 | 9 | 7.55 | 3.78 | 2.00 | 1.15 | 19.6 | 9.8 | 1.36 | .283 | 3.62 | 85 | 4.51 | 111 | 8.43 | -14.7 |
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