Zac Gallen

Zac Gallen

27-Year-Old PitcherSP
Arizona Diamondbacks
2023 Fantasy Outlook
For the first time in his career, Gallen avoided the injury bug, logging 31 starts and 184 innings. He recorded a career best 20.3% K-BB% mark, mostly due to a personal best 6.6% walk rate. Gallen's ratios benefited from a .237 BABIP as well as a 9.1% HR/FB mark. However, even if his 2.54 ERA was achieved with a boost from Lady Luck, Gallen's 3.05 FIP, 3.32 xFIP and 3.32 SIERA are all still excellent, softening the landing when the regression monster rears its ugly head. Gallen's pitch mix didn't change, but he threw his four-seam fastball, slider and curveball a little harder, increasing effectiveness so strikeouts should tick up with continued health. Gallen isn't off the injury concern hook but coming off a healthy season merits fantasy anchor consideration. There is a stigma about drafting pitchers from second-division teams, but the Diamondbacks offense is on the upswing, so wins are on the table. Read Past Outlooks
RANKSFrom Preseason
#73
ADP
$Signed a one-year, $5.6 million contract with the Diamondbacks in January of 2023.
Fans six in no-decision
PArizona Diamondbacks
June 4, 2023
Gallen allowed three runs (two earned) on nine hits and a walk over six innings in Sunday's loss to Atlanta. He struck out six and did not factor in the decision.
ANALYSIS
It wasn't Gallen's sharpest outing as he gave up a season-high nine hits but he escaped with just two earned runs against him. The 27-year-old also coughed up a homer for the first time since April 4. After a brutal outing against the Pirates, he's given up two or fewer earned runs in three straight outings, resulting in a 2.75 ERA across 78.2 frames. Gallen's next start is projected to be in Detroit.
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Pitching Stats
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2023
2022
2021
2020
2019
2023 MLB Game Log
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2022 MLB Game Log
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2021 MLB Game Log
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2020 MLB Game Log
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2019 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
94
Last 10 Games
95
Last 5 Games
95
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+
 
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+
 
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
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
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 2021
 
 
-9%
BAA vs LHP
2023
 
 
-2%
BAA vs RHP
2022
 
 
-34%
BAA vs LHP
2021
 
 
-15%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2021vs Left .201 760 204 58 139 31 2 13
Since 2021vs Right .220 792 213 55 158 42 1 24
2023vs Left .232 151 43 9 33 8 0 1
2023vs Right .227 164 43 8 35 11 0 2
2022vs Left .146 338 97 26 45 12 0 7
2022vs Right .222 376 95 21 76 20 1 8
2021vs Left .252 271 64 23 61 11 2 5
2021vs Right .213 252 75 26 47 11 0 14
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2021
 
 
-29%
ERA at Home
2023
 
 
-82%
ERA at Home
2022
 
 
-4%
ERA at Home
2021
 
 
-11%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2021Home 2.62 0.99 199.1 14 8 0 10.3 2.3 0.9
Since 2021Away 3.70 1.15 184.2 9 8 0 9.3 3.0 0.9
2023Home 0.96 0.85 47.0 6 0 0 11.5 1.3 0.2
2023Away 5.40 1.42 31.2 1 2 0 8.0 2.8 0.6
2022Home 2.49 0.85 90.1 6 1 0 9.0 2.1 0.6
2022Away 2.59 0.97 93.2 6 3 0 9.8 2.5 0.9
2021Home 4.06 1.31 62.0 2 7 0 11.3 3.5 1.7
2021Away 4.55 1.28 59.1 2 3 0 9.3 3.8 1.1
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.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
5.18
 
K/9
10.1
 
BB/9
1.9
 
HR/9
0.3
 
Fastball
93.6 mph
 
ERA
2.75
 
WHIP
1.08
 
BABIP
.327
 
GB/FB
1.33
 
Left On Base
69.3%
 
Exit Velocity
83.8 mph
 
Barrels/BBE
4.0%
 
Spin Rate
2247 rpm
 
Balls Hit 95+ MPH
27.8%
 
Swinging Strike
11.9%
 
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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Recent RotoWire Articles Featuring Zac Gallen See More
Weekly Pitcher Rankings: More Nothing than Double
2 days ago
Todd Zola toes the rubber with his Weekly Pitcher Rankings for fantasy baseball, starting with Toronto's Kevin Gausman taking the mound twice at home against a pair of tough opponents.
Mound Musings: He's Got “Rhythm”
4 days ago
Brad Johnson focuses on a handful of pitchers who appear to have achieved rhythm even with the advent of the pitch timer, starting with Michael Kopech of the White Sox.
The Z Files: Would You Rather, Pitching Style
4 days ago
Todd Zola poses a series of questions regarding rest-of-season pitching expectations and finds that Joe Ryan has earned a great deal of trust.
Yahoo DFS Baseball: Tuesday Plays and Strategy
6 days ago
Mike Barner is all over the Dodgers’ bats Tuesday against the Nats.
DraftKings MLB: Tuesday Breakdown
6 days ago
Dan Marcus previews Tuesday’s 13-game slate, turning to a White Sox stack against the Angels.
Past Fantasy Outlooks
2022
2021
2020
Gallen endured an injury-riddled first half, beginning with a hairline fracture in his right arm initially thought to be more serious, followed by a sprained right elbow and hamstring strain. He headed into the break with only nine starts. Gallen gathered 14 in the second half, registering a 4.37 ERA and 1.24 WHIP with 90 punch outs in 80.1 innings, but he also walked 18 and surrendered 14 homers in that span. Eight of the homers came on a slider or changeup. Together, he threw those secondary offerings only one-third of the time, so the home run surplus seems more fluky than worrisome. Gallen is still just 26-years-old, so there's plenty of time to regain near-ace status. Last season's injuries provide pause, and his availability for Opening Day is in question due to some offseason shoulder issues. Gallen isn't expected to miss much time if any, but it remains a concern coming off the 2021 injuries If helium floated Gallen out of your range the past couple of seasons, the price is right to get back in, assuming he's healthy.
The Marlins have a good corps of starters, but it looks like they may have let an ace get away when they traded Gallen to Arizona at the 2019 trade deadline. Gallen has been one of the most effective starting pitchers in the game since he broke into the majors that season. A third-round pick in 2016, Gallen has faced 625 batters in the big leagues and pitched to a 2.78 ERA, 1.17 WHIP and 178:61 K:BB. He has a balanced pitch mix, utilizing his four-seamer, cutter, curveball and changeup all at least 16% of the time. His cutter has good horizontal break, his changeup has good downward movement and he can command the ball well in and around the zone. The ERA estimators suggest some performance giveback is imminent and it is best to count on some, though Gallen has routinely outperformed his estimators in pro ball. Remember Chase Field has become a pitchers' park since the humidor was installed.
Gallen impressed in his first glimpse of major-league action with the Marlins last season and was surprisingly traded to the Diamondbacks at the end of July. While the deal means that Gallen is now pitching in the stronger NL West, he also has a more productive offense powering him and a much better defense behind him. Although the right-hander only throws his fastball 92.9 mph on average, he has three strong secondary pitches and plus command. The 24-year-old posted a career-high 171.1 innings between the majors and minors last year before being shut down at the end of September, so workload should not be a major concern for 2020. Gallen may not overpower hitters with his velocity, but he can rack up strikeouts and the ingredients are there for him to take a leap. The hype train has already left the station, however, so know you're going to have to pay full freight if you want to go along for the ride.
More Fantasy News
Shuts out Rockies for win
PArizona Diamondbacks
May 31, 2023
Gallen (7-2) shut out the Rockies over six innings to earn his seventh win of the season Tuesday. He allowed five hits and two walks while striking out seven.
ANALYSIS
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Decent in Philly
PArizona Diamondbacks
May 24, 2023
Gallen did not factor into the decision Wednesday, allowing two runs on five hits and two walks over 5.2 innings against the Phillies. He struck out three.
ANALYSIS
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Falls flat versus Pittsburgh
PArizona Diamondbacks
May 20, 2023
Gallen (6-2) took the loss Friday, allowing eight runs (five earned) on eight hits and four walks over 3.2 innings against Pittsburgh. He struck out two.
ANALYSIS
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Turns in strong start
PArizona Diamondbacks
May 13, 2023
Gallen (6-1) allowed two runs on five hits and two walks while striking out six over 7.2 innings to earn the win over the Giants on Saturday.
ANALYSIS
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Masterful again Monday
PArizona Diamondbacks
May 9, 2023
Gallen (5-1) earned the win over Miami on Monday, allowing one run on five hits and one walk while striking out seven batters over seven innings.
ANALYSIS
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