Zac Gallen

Zac Gallen went five innings and allowed three runs on eight hits as the Diamondbacks came from behind to defeat the Phillies, 4-3, on Sunday. The righthander walked one and struck out two.

Fantasy Impact

Gallen was in complete control until disaster struck in the sixth as he gave up three runs on five consecutive hits without recording an out. Jonathan Loaisiga came on in relief and retired the next three batters with runners at the corners to prevent further damage. Through five innings, Gallen had allowed just three hits and a walk, facing two batters over the minimum. But, in the sixth, he allowed a double to Justin Crawford, a home run to Trea Turner, back-to-back doubles to Kyle Schwarber and Bryce Harper, and a single to Brandon Marsh as the Phillies erased a 2-0 deficit. The veteran is 1-1 on the season with a respectable 3.60 ERA. However, his 1.45 WHIP and his 11:7 K:BB ratio suggest that he has been a little lucky. Gallen is currently lined up to take on the Blue Jays on Saturday in his next outing.

Zac Gallen settled for a no-decision on Tuesday after going five innings in a 4-3, 10-inning loss to the Mets. The righthander allowed two runs - one earned - on five hits while walking four and striking out five.

Fantasy Impact

It was a mixed bag of a performance for Gallen (1-1) who gave up only one earned run in five innings, but allowed nine baserunners to reach. The righthander did not have a 1-2-3 inning the entire game and needed 95 pitches to get through five innings, but was able to escape trouble more often than not. The veteran will take a 3.00 ERA and a 1.33 WHIP into his next start.

Zac Gallen (1-1) picked up his first win of the season on Wednesday as he pitched six scoreless innings in the Diamondbacks' 1-0 win over Detroit. The righthander did not walk a batter and struck out two.

Fantasy Impact

Gallen was given a 1-0 lead on the second batter of the game as Corbin Carroll took Tarik Skubal deep and then made it stand up as that proved to be the only offense of the game. Gallen threw 88 pitches to get through six innings, but dodged a bullet in the sixth. Tigers' rookie Kevin McGonigle tripled with one out, but, Gleyber Torres lined out to first baseman Jose Fernandez who then threw to third to nab McGonigle for the inning-ending double play. Gallen will take a 3.60 ERA into his next start, likely against the Mets early next week.

Zac Gallen was saddled with the loss on Thursday night after allowing four runs on five hits in four innings in Arizona's 8-2 loss to the Dodgers. He walked two and struck out two.

Fantasy Impact

Gallen was brilliant through four innings, allowing only a hit and a walk as the Diamondbacks jumped out to a 2-0 lead. However, the first five batters reached base against the righthander in the fifth on back-to-back singles, a three-run homer by Andy Pages, another single, and finally a walk. Gallen is coming off, arguably, the worst season of his career as he went 13-15 with a 4.83 ERA in 2025. It was his fourth consecutive Opening Day start for the Diamondbacks and he'll look to bounce back in his next start, tentatively scheduled for a home contest against the Tigers next week.

Zac Gallen will take the mound for the Diamondbacks on Opening Day.

Fantasy Impact

Arizona manager Torey Lovullo has named Gallen as the Opening Day starter for a fourth consecutive season. This will be the beginning of what the 30-year-old righty hopes to be a bounce-back season. Gallen turned in a career-worst 4.83 ERA across 33 starts in 2025.