| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 14 | 11 | 0 | 0 | 181.0 | 164 | 59 | 176 | 85 | 4.23 | 1.230 | 36.2 |
| 2025 | 13 | 15 | 0 | 0 | 192.0 | 176 | 66 | 175 | 103 | 4.83 | 1.260 | 20.3 |
| 2024 | 14 | 6 | 0 | 0 | 148.0 | 133 | 54 | 156 | 60 | 3.65 | 1.264 | 55.3 |
| 2023 | 17 | 9 | 0 | 0 | 210.0 | 188 | 47 | 220 | 81 | 3.47 | 1.119 | 83.2 |
| Date | News |
| 1/31/26 | [Fox Sports] - Athletics? Giants? 3 Best MLB Free Agent Fits for D-backs RHP Zac Gallen. If Zac Gallen leaves the Arizona Diamondbacks, here are the three best MLB free agent fits for the right-hander. Source: https://sportspyder.com/mlb/oakland-athletics/arti... |
| 1/29/26 | MLB rumors: Zac Gallen drawing interest from three teams as spring training looms. Zac Gallen had a down year in 2025 and was ranked as the 18th-best free agent this offseason Source: https://www.cbssports.com/mlb/news/mlb-rumors-zac-... |
| 12/06/25 | MLB rumors: Cubs pursuing Zac Gallen, Mariners and Nats strike a trade, another AL East team eyes Bo Bichette. Here's the latest from the hot stove ahead of MLB's Winter Meetings Source: https://www.cbssports.com/mlb/news/mlb-rumors-phil... |
| 9/09/25 | Arizona Diamondbacks vs. San Francisco Giants: Game time, pitching matchups, more. Arizona Diamondbacks starter Zac Gallen has had a nice run since the trade deadline, turning in seven starts with a 2.20 ERA across 41 innings. Source: https://sports.yahoo.com/article/arizona-diamondba... |
| 9/09/25 | Giants meet the Diamondbacks with 1-0 series lead. Arizona Diamondbacks (72-73, fourth in the NL West) vs. San Francisco Giants (73-71, third in the NL West) San Francisco; Tuesday, 9:45 p.m. EDT PITCHING PROBABLES: Diamondbacks: Zac Gallen (11-13, 4.77 ERA, 1.28 WHIP, 154 strikeouts); Giants: Robbie Ray (10-6, 3.31 ERA, 1.18 WHIP, 171 strikeouts) BETMGM SPORTSBOOK LINE: Giants -145, Diamondbacks +122; over/under is 7 1/2 runs BOTTOM LINE: The San Francisco Giants play the Arizona Diamondbacks with a 1-0 series lead. San Francisco is 73-71 overall and 36-34 in home games. The Giants have a 45-12 record in games when they scored at least five runs. Arizona has a 34-39 record in road games and a 72-73 record overall. Diamondbacks hitters have a Source: https://wtop.com/sports/2025/09/giants-meet-the-di... |
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