Zac Gallen
29-Year-Old
2024 Stats
W-L
14-6
ERA
3.65
WHIP
1.26
K
156
SV
0
2025 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 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
Available out of bullpen
Gallen expects to be available out of the bullpen Sunday against the Padres, Steve Gilbert of MLB.com reports.
ANALYSIS
He did not throw his usual between-start bullpen session over the weekend in case he was needed on the final day of the regular season. Arizona gets into the postseason with a win Sunday and losses by the Mets and Atlanta, so Gallen could end up appearing and qualifying for a win or save in relief of Brandon Pfaadt.
He did not throw his usual between-start bullpen session over the weekend in case he was needed on the final day of the regular season. Arizona gets into the postseason with a win Sunday and losses by the Mets and Atlanta, so Gallen could end up appearing and qualifying for a win or save in relief of Brandon Pfaadt.
Pitching Stats
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2024
2023
2022
2021
2020
2019
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
90
Last 10 Games
96
Last 5 Games
97
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 2022
-12%
BAA vs LHP
2024
-12%
BAA vs LHP
BAA | K | BB | H | HR | ||||
---|---|---|---|---|---|---|---|---|
Since 2022vs Left | .206 | 280 | 77 | 199 | 28 | |||
Since 2022vs Right | .234 | 288 | 71 | 243 | 22 | |||
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 | |||
2022vs Left | .146 | 97 | 26 | 45 | 7 | |||
2022vs Right | .222 | 95 | 21 | 76 | 8 | |||
More Splits→ | View More Split Stats |
Home/Away Pitching Splits
Since 2022
-25%
ERA at Home
2024
-16%
ERA at Home
ERA | WHIP | IP | K/9 | BB/9 | |||||
---|---|---|---|---|---|---|---|---|---|
Since 2022Home | 2.75 | 1.02 | 275.1 | 9.8 | 2.1 | ||||
Since 2022Away | 3.68 | 1.16 | 266.2 | 9.0 | 2.8 | ||||
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 | ||||
2022Home | 2.49 | 0.85 | 90.1 | 9.0 | 2.1 | ||||
2022Away | 2.59 | 0.97 | 93.2 | 9.8 | 2.5 | ||||
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
2.89K/9
9.5BB/9
3.3HR/9
0.8Fastball
93.7 mphERA
3.65WHIP
1.26BABIP
.315GB/FB
1.67Left On Base
74.1%Exit Velocity
82.7 mphBarrels/BBE
4.8%Spin Rate
2199 rpmBalls Hit 95+ MPH
24.5%Swinging Strike
10.5%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
Strikes out 11 in 14th win
Gallen (14-6) picked up the win over the Giants on Wednesday, allowing one run on two hits and two walks over six innings while striking out 11.
ANALYSIS
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Carried to win by offense
Gallen (13-6) picked up the win Friday, giving up four runs on seven hits -- including three home runs -- and a walk over five innings in a 7-4 victory over the Brewers. He struck out five.
ANALYSIS
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Allows three-run homer
Gallen did not factor into the decision in Sunday's win over the Brewers, allowing three runs on six hits and two walks while striking out seven over five innings.
ANALYSIS
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Another scoreless start
Gallen (12-6) earned the win over the Rangers on Tuesday, allowing two hits and two walks while striking out seven over five shutout innings.
ANALYSIS
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Hurls six shutout, no-hit innings
Gallen (11-6) picked up the win over the Giants on Wednesday, allowing four walks and no hits over six shutout innings. He struck out eight.
ANALYSIS
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Latest Fantasy Rumors
Potential trade chip
The Diamondbacks might consider trading Gallen this offseason, Will Sammon and Patrick Mooney of The Athletic report.
ANALYSIS
Multiple clubs looking for rotation help reached out to the Diamondbacks at this week's general managers' meetings. While it's not clear which of their arms has drawn the most interest, Gallen, Merrill Kelly and Jordan Montgomery will all be free agents following the 2025 season. It would be difficult for Arizona to part with their best starter in Gallen since they want to be competitive next season, but he would also likely bring the best return.
Multiple clubs looking for rotation help reached out to the Diamondbacks at this week's general managers' meetings. While it's not clear which of their arms has drawn the most interest, Gallen, Merrill Kelly and Jordan Montgomery will all be free agents following the 2025 season. It would be difficult for Arizona to part with their best starter in Gallen since they want to be competitive next season, but he would also likely bring the best return.