2025 Stats
W-L
7-11
ERA
5.58
WHIP
1.37
K
116
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Gallen turned in another solid but not ace-level season. His career 26.6 percent strikeout rate is very good, but not elite. Last year, it was a career low of 25.1 percent. After two years of declining walk rates, Gallen's 8.7 percent clip was a smidge worse than average. Yielding only 13 homers in 148 frames kept Gallen's ERA in check, but if the 2025 baseball is livelier than the 2024 version, Gallen's ratios could suffer, unless he returns to a lower walk rate. Gallen's velocity was in sync with past seasons, so it's a matter of throwing more strikes. In 2023, 64.5 percent of his pitches were strikes, compared to only 61.9 percent last season. There was a time when Gallen fanned 28 percent of batters and was a back end SP1. He's now a solid SP3, with SP2 upside if he can throw more pitches in the zone. Read Past Outlooks

Tagged for two homers in loss
Gallen (7-11) allowed six runs on seven hits and a walk while striking out six over six-plus innings to take the loss Monday versus the Astros.
Analysis
Five of the six runs allowed came on the first two home runs of Brice Matthews' career, the second of which forced Gallen out of the game in the seventh inning. He's allowed a career-high 23 home runs with more than two months remaining in the season. After a couple of positive starts to begin July, Gallen has allowed 12 runs over his last 11 frames. The bad continues to outweigh the good for the right-hander, who now has a 5.58 ERA, 1.37 WHIP and 116:46 K:BB across 121 innings through 21 starts this season. Gallen is tentatively projected for a favorable road start in Pittsburgh this weekend.
Five of the six runs allowed came on the first two home runs of Brice Matthews' career, the second of which forced Gallen out of the game in the seventh inning. He's allowed a career-high 23 home runs with more than two months remaining in the season. After a couple of positive starts to begin July, Gallen has allowed 12 runs over his last 11 frames. The bad continues to outweigh the good for the right-hander, who now has a 5.58 ERA, 1.37 WHIP and 116:46 K:BB across 121 innings through 21 starts this season. Gallen is tentatively projected for a favorable road start in Pittsburgh this weekend.
Pitching Stats
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2025 MLB Game Log
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2024
2023
2022
2021
2020
2019
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
94
Last 10 Games
93
Last 5 Games
93
How many pitches does Zac Gallen generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Zac Gallen generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
-2%
BAA vs RHP
2025
-14%
BAA vs RHP
BAA | K | BB | H | HR | ||||
---|---|---|---|---|---|---|---|---|
Since 2023vs Left | .245 | 233 | 76 | 216 | 30 | |||
Since 2023vs Right | .239 | 259 | 71 | 225 | 28 | |||
2025vs Left | .276 | 50 | 25 | 62 | 9 | |||
2025vs Right | .237 | 66 | 21 | 58 | 14 | |||
2024vs Left | .222 | 77 | 25 | 61 | 7 | |||
2024vs Right | .252 | 79 | 29 | 72 | 6 | |||
2023vs Left | .244 | 106 | 26 | 93 | 14 | |||
2023vs Right | .232 | 114 | 21 | 95 | 8 | |||
More Splits→ | View More Split Stats |
Home/Away Pitching Splits
Since 2023
-19%
ERA at Home
2025
-14%
ERA on Road
ERA | WHIP | IP | K/9 | BB/9 | |||||
---|---|---|---|---|---|---|---|---|---|
Since 2023Home | 3.65 | 1.20 | 246.2 | 9.8 | 2.6 | ||||
Since 2023Away | 4.49 | 1.26 | 232.1 | 8.7 | 2.9 | ||||
2025Home | 5.98 | 1.49 | 61.2 | 8.5 | 4.1 | ||||
2025Away | 5.16 | 1.25 | 59.1 | 8.8 | 2.7 | ||||
2024Home | 3.36 | 1.19 | 83.0 | 9.8 | 2.7 | ||||
2024Away | 4.02 | 1.35 | 65.0 | 9.1 | 4.0 | ||||
2023Home | 2.47 | 1.03 | 102.0 | 10.6 | 1.6 | ||||
2023Away | 4.42 | 1.20 | 108.0 | 8.3 | 2.4 | ||||
More Splits→ | View More Split Stats |
Stat Review
How does Zac Gallen compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
2.52K/9
8.6BB/9
3.4HR/9
1.7Fastball
93.4 mphERA
5.58WHIP
1.37BABIP
.301GB/FB
1.17Left On Base
64.3%Exit Velocity
84.7 mphBarrels/BBE
7.6%Spin Rate
2233 rpmBalls Hit 95+ MPH
30.9%Swinging Strike
10.4%Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
2024
2023
2022
2021
2020
Gallen had a fantastic season and received some deserved votes for the Cy Young Award as he helped carry the Diamondbacks to their improbable World Series run. Most of his performance indicators were right in line with 2022 but better run support helped raise his wins while a near full-run jump in his ERA can be excused by the BABIP regression which we expected would come after his rather fortunate .237 BABIP in 2022. Simply put, there is not a performance issue to be concerned with as much as a workload concern. Gallen ended up throwing 243.2 innings in 2023, which was almost exactly double what he threw just two seasons ago. He managed a 52% increase in workload just fine from 2021 to 2022, but now we add another 32% increase in workload along with the stress of working in the postseason for the first time and we cannot help but wonder about the impact of that for 2024. 2023 was an excellent season, but it would not surprise us to see Gallen take a step back this season.
More Fantasy News

Saddled with 10th loss
Gallen (7-10) took the loss Saturday, surrendering six runs on eight hits and two walks over five innings as the Diamondbacks fell 10-5 to the Angels. He struck out three.
Analysis
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Continues turnaround with nine Ks
Gallen (7-9) earned the win over San Diego on Monday, allowing an unearned run on five hits and one walk while striking out nine batters over six innings.
Analysis
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Strikes out 10 in win
Gallen (6-9) allowed two runs (one earned) on five hits and struck out 10 without walking a batter over seven innings to earn the win over the Giants on Tuesday.
Analysis
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Struggles continue Wednesday
Gallen (5-9) took the loss Wednesday as the Diamondbacks fell 7-3 to the White Sox, coughing up five runs on eight hits and a walk over 5.1 innings. He struck out two.
Analysis
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Escapes Coors with win
Gallen (5-8) picked up the win Friday, surrendering seven runs on 10 hits and a walk over five innings in a 14-8 victory over the Rockies. He struck out five.
Analysis
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Latest Fantasy Rumors

Target for Toronto
Bob Nightengale of USA Today reports that the Blue Jays have shown interest in trading for Gallen.
Analysis
Toronto has vaulted into first place in the AL East with a 29-13 record since and including May 28, and the club is expected to be an aggressive buyer ahead of the July 31 trade deadline. The Blue Jays have been using Eric Lauer in a hybrid role to cover the No. 5 spot in the rotation, and adding Gallen would provide some much-needed depth to the starting unit. The Arizona right-hander has a career-worst 5.40 ERA through 20 starts this year, but Gallen's career 3.55 ERA provides a glimpse of what he's offered since debuting in 2019.
Toronto has vaulted into first place in the AL East with a 29-13 record since and including May 28, and the club is expected to be an aggressive buyer ahead of the July 31 trade deadline. The Blue Jays have been using Eric Lauer in a hybrid role to cover the No. 5 spot in the rotation, and adding Gallen would provide some much-needed depth to the starting unit. The Arizona right-hander has a career-worst 5.40 ERA through 20 starts this year, but Gallen's career 3.55 ERA provides a glimpse of what he's offered since debuting in 2019.