Yusei Kikuchi had a record of 26-26 with an ERA of 4.46, 515 strikeouts and 1 save in 102 appearances between the 2020 and 2023 seasons.
| 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 |  | Y. Kikuchi | 2020 |  SEA | 9 | 2 | 4 | .333 | 9 | 5.17 | 47 | 0 | 0 | 0 | 47.0 | 41 | 27 | 27 | 3 | 20 | 0 | 0 | 0 | 194 | 3 | 9.00 | 3.83 | 2.35 | 0.57 | 24.2 | 10.3 | 1.30 | .306 | 5.17 | 123 | 3.29 | 76 | 7.85 | 5.4 |
| 2 | | Y. Kikuchi | 2021 | SEA | 29 | 7 | 9 | .438 | 29 | 4.41 | 163 | 0 | 0 | 0 | 157.0 | 145 | 77 | 82 | 27 | 62 | 5 | 0 | 0 | 666 | 6 | 9.34 | 3.55 | 2.63 | 1.55 | 24.5 | 9.3 | 1.32 | .289 | 4.70 | 106 | 4.60 | 111 | 8.31 | -8.4 |
| 3 |  | Y. Kikuchi | 2022 |  TOR | 32 | 6 | 7 | .462 | 20 | 5.19 | 124 | 0 | 0 | 1 | 100.2 | 93 | 58 | 67 | 23 | 58 | 9 | 4 | 0 | 454 | 3 | 11.09 | 5.19 | 2.14 | 2.06 | 27.3 | 12.8 | 1.50 | .292 | 5.99 | 135 | 5.61 | 140 | 8.31 | -17.4 |
| 4 | | Y. Kikuchi | 2023 | TOR | 32 | 11 | 6 | .647 | 32 | 3.86 | 181 | 0 | 0 | 0 | 167.2 | 165 | 72 | 78 | 27 | 48 | 4 | 0 | 0 | 700 | 7 | 9.72 | 2.58 | 3.77 | 1.45 | 25.9 | 6.9 | 1.27 | .314 | 4.19 | 91 | 4.12 | 96 | 8.86 | 3.1 |
| Total | 102 | 26 | 26 | .500 | 90 | 4.46 | 515 | 0 | 0 | 1 | 472.1 | 444 | 234 | 254 | 80 | 188 | 18 | 4 | 0 | 2,014 | 19 | 9.81 | 3.58 | 2.74 | 1.52 | 25.6 | 9.3 | 1.34 | .300 | 4.84 | 109 | 4.51 | 108 | 8.46 | -17.3 |
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