| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2025 proj | 15 | 7 | 0 | 0 | 175.0 | 149 | 51 | 183 | 66 | 3.38 | 1.142 | 62.7 |
| 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 |
| 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... |
| 9/04/25 | Good, Bad and Ugly from D-backs' Nail-Biting Series Win vs Rangers. The Arizona Diamondbacks just took two out of three from a Texas Rangers club that had won seven of eight heading into Chase Field. When Zac Gallen began to show signs of re-emerging as a top-end starter in the beginning of August, it was easy to assume that was a mere flash in the pan. The Rangers are not a poor offensive team. In fact, they forced Gallen out after five innings the last time they saw him, belting a two-run homer that put him in line for the loss. Source: https://www.si.com/mlb/diamondbacks/arizona-diamon... |
| 9/03/25 | Zac Gallen pitches 6 scoreless innings, Diamondbacks beat Rangers 2-0. Zac Gallen pitched six scoreless innings in his latest quality start and the Arizona Diamondbacks beat the Texas Rangers 2-0 on Wednesday. Gallen (11-13) allowed four hits and struck out five with no walks. The Diamondbacks scraped together two early runs against Rangers starter Jack Leiter (9-8) and their bullpen did the rest. Source: https://sports.yahoo.com/article/zac-gallen-pitche... |
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