| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 6 | 8 | 1 | 3 | 118.0 | 131 | 35 | 96 | 63 | 4.77 | 1.403 | 6.2 |
| 2025 | 3 | 6 | 1 | 4 | 84.7 | 96 | 26 | 66 | 48 | 5.10 | 1.441 | -2.4 |
| 2024 | 8 | 10 | 0 | 1 | 151.3 | 165 | 44 | 126 | 77 | 4.58 | 1.381 | 14.6 |
| Date | News |
| 1/13/26 | [SB Nation: Athletics Nation] - 2025 Athletics Season In Review: Mitch Spence. Just two Season In Reviews left guys! Now’s the time to go back and check to see we missed anyone but I don’t think so. Today’s recap goes to right-hander Mitch Spence, who was a starter for most of his rookie season in 2024 but was relegated to bullpen work early last season before finally […] Source: https://sportspyder.com/mlb/oakland-athletics/arti... |
| 9/21/25 | [SB Nation: Athletics Nation] - A’s futility continues against Bucs 11-0. The finale of the three-game series, and the end of the last road trip of the season took place today as the Athletics faced off against the Pittsburgh Pirates at PNC Park in Pittsburgh. Mitch Spence (3-5) got the start for the A’s and Mike Burrows (2-4) took the mound for the Pirates. The A’s […] Source: https://sportspyder.com/mlb/oakland-athletics/arti... |
| 9/10/25 | [Sports Illustrated] - A's Call Up Mitch Spence For Stretch Run. Ahead of Wednesday's series finale with the Boston Red Sox, the Athletics have called up right-hander Mitch Spence from Triple-A Las Vegas. To make room for him Source: https://sportspyder.com/mlb/oakland-athletics/arti... |
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