Richard Fitts has a 0-3 record with an ERA of 2.39 and 22 strikeouts in 7 appearances for the Red Sox 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. Fitts | 2024 |  BOS | 4 | 0 | 1 | .000 | 4 | 1.74 | 9 | 0 | 0 | 0 | 20.2 | 19 | 4 | 6 | 0 | 7 | 0 | 0 | 0 | 85 | 1 | 3.92 | 3.05 | 1.29 | 0.00 | 10.6 | 8.2 | 1.26 | .275 | 2.61 | 41 | 3.30 | 80 | 8.27 | 1.9 |
| 2 | | R. Fitts | 2025 | BOS | 3 | 0 | 2 | .000 | 3 | 3.18 | 13 | 0 | 0 | 0 | 17.0 | 14 | 6 | 6 | 2 | 5 | 0 | 0 | 0 | 70 | 1 | 6.88 | 2.65 | 2.60 | 1.06 | 18.6 | 7.1 | 1.12 | .240 | 3.18 | 77 | 3.94 | 97 | 7.41 | 0.3 |
| Total | 7 | 0 | 3 | .000 | 7 | 2.39 | 22 | 0 | 0 | 0 | 37.2 | 33 | 10 | 12 | 2 | 12 | 0 | 0 | 0 | 155 | 2 | 5.26 | 2.87 | 1.83 | 0.48 | 14.2 | 7.7 | 1.19 | .261 | 2.87 | 57 | 3.59 | 88 | 7.88 | 2.1 |
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