Diamondbacks' Zac Gallen: Poor end to rough season
Rotowire
Gallen (13-15) allowed six runs (five earned) on seven hits and three walks while striking out three over 4.1 innings to take the loss versus the Padres on Friday.
A Fernando Tatis grand slam in the fourth inning flipped this game in the Padres' favor. Gallen was pushed back a day after dealing with fatigue stemming from an illness in recent weeks, but his final start of 2025 was reflective of his year as a whole. The right-hander finishes the season at a career-worst 4.83 ERA while adding a 1.26 WHIP and 175:66 K:BB over 192 innings through 33 starts. He also gave up a career-high 31 homers, an area in which the 30-year-old will need to improve if he is to get back on track in 2026.
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Diamondbacks' Zac Gallen: Pushed to Friday due to fatigue
Rotowire
Gallen's next start was pushed back a day to Friday in San Diego due to fatigue/illness, Jody Jackson of Bally Sports Arizona reports.
It was Gallen's turn Thursday versus the Dodgers, but he's dealt with an illness during his last two starts that's sapped his strength. His performance in those outings appeared unaffected, as the righty yielded four runs with a 15:3 K:BB over 13 innings, but the Diamondbacks nonetheless made the decision to give Gallen an extra day of rest. Jalen Beeks is opening and Nabil Crismatt is slated for bulk relief Thursday.
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Diamondbacks' Zac Gallen: Strikes out nine in win
Rotowire
Gallen (13-14) allowed three runs on four hits and two walks while striking out nine over seven innings to earn the win Saturday over the Phillies.
The nine strikeouts were the most Gallen has had in a start since July 7 versus the Padres. This was his sixth quality start in his last seven outings, and it was the first time he's completed seven frames since July 1 against the Giants. Gallen is ending the year strong, though his early struggles are evident in his 4.70 ERA and 1.24 WHIP through 187.2 innings. Gallen also allowed 30 homers in a season for the first time in his career when he gave up a solo shot to Alec Bohm in the fourth inning, giving Gallen the third-most homers allowed by a qualified starting pitcher this season. The right-hander's regular season is projected to come to a close with a home start versus the Dodgers next week.
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Diamondbacks' Zac Gallen: Sharp in Monday's win
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Gallen (12-14) allowed one run on two hits and a walk while striking out six over six innings to earn the win over the Giants on Monday.
Gallen was stingy despite throwing just 57 of 96 pitches for strikes, with the lone run on his line being the result of a Casey Schmitt solo home run in the third inning. This was Gallen's fifth quality start in his last six outings, the lone exception being his five-run appearance in San Francisco last week. Gallen is now at a 4.73 ERA, 1.25 WHIP and 163:61 K:BB across 180.2 innings over 31 starts this season, though he has a 2.68 ERA in 53.2 innings through his last nine outings. He's projected for a tough home start versus the Phillies this weekend.
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Diamondbacks' Zac Gallen: Works deep in loss
Rotowire
Gallen (11-14) allowed five runs on five hits and three walks while striking out three over 6.2 innings to take the loss versus the Giants on Tuesday.
Gallen had shaky command in the first inning and served up a three-run home run to Willy Adames. He mostly settled in after that but didn't get enough run support to overcome the early misstep. This was his longest start since he tossed seven innings against the Giants on July 1. Gallen is now at a 4.84 ERA, 1.28 WHIP and 157:60 K:BB through 174.2 innings over 30 starts. He's now up to 28 homers allowed this year, though he's gotten that issue largely under control with just five of those long balls coming over his last nine outings. Gallen is projected to make his next start in a rematch at home versus the Giants early next week.
Diamondbacks' Zac Gallen: Blanks Texas for 11th win
Rotowire
Gallen (11-13) picked up the win Wednesday, allowing four hits and a walk over six scoreless innings in a 2-0 victory over the Rangers. He struck out five.
The veteran righty continues a late-season turnaround, delivering his sixth quality start in seven trips to the mound since the beginning of August. Over that stretch, Gallen has a 4-1 record with a 2.20 ERA, 1.05 WHIP and 33:10 K:BB through 41 innings. He'll look to keep rolling in his next outing, which is scheduled to come on the road early next week in San Francisco.
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Diamondbacks' Zac Gallen: Fires six shutout innings
Rotowire
Gallen (10-13) allowed two hits and three walks while striking out eight over six shutout innings to earn the win over the Dodgers on Friday.
Gallen has steadied his season with a strong August -- this was his fifth quality start in six outings for the month. It was just the second scoreless outing of the season for Gallen, who also ended a three-game winless stretch with the effort. A big part of his recent success has come from limiting home runs -- he's given up just three long balls over his last seven starts, spanning 41 innings. On the year, he's now at a 4.94 ERA, 1.30 WHIP and 149:56 K:BB through 162 innings across 28 starts. The right-hander is projected for a home matchup versus the Rangers next week.
Diamondbacks' Zac Gallen: Quality start in no-decision
Rotowire
Gallen allowed one run on four hits and one walk over six innings while not factoring into the decision in Sunday's 6-1 loss to the Reds. He struck out seven.
The Arizona right-hander impressed over this 95-pitch outing, as he tallied a quality start for the fourth time out of his last five appearances. The only blemish on Gallen's line came in the sixth when Noelvi Marte lashed a run-scoring triple -- the only extra-base knock Gallen conceded. Despite an ugly 5.13 ERA and 1.31 WHIP across 156 total innings, the 30-year-old has pitched better since the All-Star break, producing a 4.39 ERA, 1.15 WHIP and 31:8 K:BB over 41 frames. Gallen lines up for a difficult test in his next start, which currently lines up to come on the road against the Dodgers next weekend.
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Diamondbacks' Zac Gallen: Yields two homers in loss
Rotowire
Gallen (9-13) allowed three runs on five hits and struck out three without walking a batter over six innings to take the loss versus the Guardians on Monday.
Gallen has recorded a quality start in three of his four outings in August, though his effort Monday wasn't enough to get a win. He allowed a solo home run to C.J. Kayfus in the second inning and gave up a two-run blast to Brayan Rocchio in the fifth, making this the first time in five starts Gallen has given up multiple homers. The veteran right-hander is now at a 5.28 ERA, 1.33 WHIP and 134:52 K:BB through 150 innings over 26 starts this season. Gallen is projected to make his next start at home versus the Reds.
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Diamondbacks' Zac Gallen: Goes five innings in no-decision
Rotowire
Gallen did not factor into the decision Wednesday against the Rangers, allowing three runs on five hits and two walks over five innings. He struck out one.
It's the first time in five starts that Gallen's failed to make it through six innings -- the right-hander had won his previous two outings, giving up just three runs over 12 innings in that span. Overall, Gallen's ERA sits at 5.31 with a 1.35 WHIP and 131:52 K:BB across 25 starts (144 innings) this season. He's currently lined up to face the Guardians at home his next time out.
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Diamondbacks' Zac Gallen: Collects ninth win
Rotowire
Gallen (9-12) allowed one run on four hits and three walks while striking out six over six innings to earn the win over the Rockies on Friday.
Gallen has covered at least six innings in six of his last seven starts, earning wins in all four of his quality starts in that span. He limited the damage to a Kyle Karros RBI single in the second inning of this contest, though the Diamondbacks' lead was never in danger. Gallen is now at a 5.31 ERA, 1.35 WHIP and 130:50 K:BB through 139 innings across 24 starts this season. The veteran right-hander's next outing is projected to be on the road versus the Rangers.
Gallen (8-12) allowed two runs on nine hits and struck out three without walking a batter over six innings to earn the win Saturday over the Athletics.
Gallen was able to scatter six singles and three doubles, and only Tyler Soderstrom's two-run double in the third inning put any damage on the right-hander's line. Gallen had mixed results with a 5.10 ERA and 1.17 WHIP across 30 innings over five starts in July, but August is off to a better start for him. Overall, he's at a 5.48 ERA, 1.36 WHIP and 124:47 K:BB through 133 innings through 23 starts, numbers that may have suppressed his trade value and ultimately allowed him to stick with Arizona. He's projected to make his next start at home versus the Rockies.
Gallen (7-12) allowed four runs on five hits and a walk over six innings Sunday, striking out five and taking a loss against Pittsburgh.
Gallen ran into some trouble early, allowing a run in the second inning and two in the third. Arizona couldn't bring a run home against Paul Skenes and the Pirates' bullpen, leading to Gallen's third consecutive loss. Gallen has given up at least four runs in seven of his last nine outings, registering a 6.24 ERA during that span. His season ERA is up to 5.60 alongside a 121:47 K:BB through 127 frames. Gallen's name has been floated around as a potential trade piece, but he's currently projected to take the mound on the road against the Athletics next weekend.
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