| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 8 | 10 | 0 | 0 | 176.0 | 173 | 60 | 186 | 78 | 3.98 | 1.323 | 33.8 |
| 2026 | 0 | 1 | 0 | 0 | 9.7 | 14 | 5 | 8 | 7 | 6.52 | 1.966 | -55.1 |
| 2025 | 7 | 11 | 0 | 0 | 178.3 | 180 | 74 | 174 | 79 | 3.99 | 1.424 | 34.5 |
| 2024 | 9 | 10 | 0 | 0 | 175.7 | 167 | 44 | 206 | 79 | 4.05 | 1.201 | 46.1 |
| Date | News |
| 2/11/26 | Angels’ Yusei Kikuchi eager to pitch in WBC, improve on last season. Unsatisfied with his 2025, the left-hander, who will pitch for Japan in the World Baseball Classic, faces hitters on the first official day of spring training. Source: https://www.ocregister.com/2026/02/11/angels-yusei... |
| 2/03/26 | Angels 2026 spring training position preview: starting rotation. Yusei Kikuchi and José Soriano are the only starters returning from a group that ranked 28th in the majors in rotation ERA in 2025. Reid Detmers returns to the rotation after a year in the bullpen. The Angels bring in Grayson Rodriguez and Alek Manoah, hoping to rediscover their form. Source: https://www.ocregister.com/2026/02/03/angels-2026-... |
| 1/29/26 | From Iwate to the world: A visit to Yusei Kikuchi's hometown training facility. No content provided Source: https://www.mlb.com/news/angels-yusei-kikuchi-buil... |
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