Spenser Watkins played 3 seasons for the Orioles and Athletics. He had 7 wins, 14 losses, an ERA of 5.97 and 102 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 |  | S. Watkins | 2021 |  BAL | 16 | 2 | 7 | .222 | 10 | 8.07 | 35 | 0 | 0 | 0 | 54.2 | 74 | 49 | 50 | 14 | 19 | 2 | 4 | 0 | 255 | 4 | 5.76 | 3.13 | 1.84 | 2.30 | 13.7 | 7.5 | 1.70 | .324 | 8.23 | 183 | 6.36 | 140 | 12.18 | -10.4 |
| 2 | | S. Watkins | 2022 | BAL | 23 | 5 | 6 | .455 | 20 | 4.70 | 63 | 0 | 0 | 0 | 105.1 | 119 | 55 | 59 | 11 | 30 | 4 | 1 | 0 | 459 | 3 | 5.38 | 2.56 | 2.10 | 0.94 | 13.7 | 6.5 | 1.41 | .308 | 5.04 | 124 | 4.24 | 110 | 10.17 | -4.6 |
| 3 | | S. Watkins | 2023 |  OAK | 1 | 0 | 1 | .000 | 1 | 10.38 | 4 | 0 | 0 | 0 | 4.1 | 7 | 5 | 5 | 2 | 2 | 0 | 0 | 0 | 21 | 0 | 8.31 | 4.15 | 2.00 | 4.15 | 19.0 | 9.5 | 2.08 | .385 | 10.38 | 253 | 8.79 | 212 | 14.54 | -2.3 |
| Total | 40 | 7 | 14 | .333 | 31 | 5.97 | 102 | 0 | 0 | 0 | 164.1 | 200 | 109 | 114 | 27 | 51 | 6 | 5 | 0 | 735 | 7 | 5.59 | 2.79 | 2.00 | 1.48 | 13.9 | 6.9 | 1.53 | .315 | 6.24 | 147 | 5.06 | 123 | 10.95 | -17.3 |
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