Zac Gallen
Zac Gallen
25-Year-Old PitcherSP
Arizona Diamondbacks
2021 Fantasy Outlook
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. Read Past Outlooks
RANKSFrom Preseason
#62
ADP
$Signed a one-year, $607,500 contract with the Diamondbacks in March of 2021.
Takes no-decision in second start
PArizona Diamondbacks
April 22, 2021
Gallen did not factor in the decision in Wednesday's win over the Reds, a completion of Tuesday's suspended game. He allowed three runs on four hits and four walks while striking out six over 5.2 innings.
ANALYSIS
Gallen made his second start of the season after spending time on the injured list with a hairline fracture of his right forearm. He built on both his innings and pitch count, throwing 98 pitches while pitching into the sixth inning. Gallen's next start is scheduled for Sunday at Atlanta.
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Pitching Stats
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2021
2020
2019
2021 MLB Game Log
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Scoring
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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
90
Last 10 Games
90
Last 5 Games
90
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 2019
 
 
-1%
BAA vs LHP
2021
 
 
-9%
BAA vs RHP
2020
 
 
-2%
BAA vs RHP
2019
 
 
-5%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2019vs Left .210 323 83 32 60 13 1 8
Since 2019vs Right .212 330 100 33 62 10 0 10
2021vs Left .200 19 4 4 3 0 0 0
2021vs Right .182 24 10 2 4 1 0 1
2020vs Left .215 136 31 12 26 4 0 3
2020vs Right .211 140 42 11 27 2 0 6
2019vs Left .207 168 48 16 31 9 1 5
2019vs Right .217 166 48 20 31 7 0 3
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2019
 
 
-5%
ERA on Road
2021
 
 
-53%
ERA at Home
2020
 
 
-27%
ERA on Road
2019
 
 
-4%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2019Home 2.91 1.14 86.2 4 4 0 11.0 3.7 1.2
Since 2019Away 2.76 1.23 75.0 2 4 0 10.3 3.7 0.7
2021Home 2.25 1.25 4.0 0 0 0 18.0 4.5 2.3
2021Away 4.76 1.41 5.2 0 0 0 9.5 6.4 0.0
2020Home 3.16 1.14 37.0 2 1 0 10.7 2.7 1.5
2020Away 2.31 1.09 35.0 1 1 0 9.8 3.6 0.8
2019Home 2.76 1.14 45.2 2 3 0 10.6 4.5 1.0
2019Away 2.88 1.34 34.1 1 3 0 11.0 3.4 0.8
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
2.33
 
K/9
13.0
 
BB/9
5.6
 
HR/9
0.9
 
Fastball
93.6 mph
 
ERA
3.72
 
WHIP
1.34
 
BABIP
.312
 
GB/FB
1.29
 
Left On Base
77.6%
 
Exit Velocity
80.6 mph
 
Barrels/BBE
4.8%
 
Spin Rate
2247 rpm
 
Balls Hit 95+ MPH
19.0%
 
Swinging Strike
13.3%
 
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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6 days ago
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12 days ago
Todd Zola ranks the week's starting pitching as a number of aces are scheduled for two starts, including the Yankees' Gerrit Cole.
2020 Fantasy Outlook
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
Fans eight in season debut
PArizona Diamondbacks
April 13, 2021
Gallen allowed one run on three hits and two walks over four innings during Tuesday's 7-5 loss to the A's. He had eight strikeouts and didn't factor in the decision.
ANALYSIS
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Officially activated ahead of start
PArizona Diamondbacks
April 13, 2021
Gallen (forearm) was activated from the 10-day injured list as expected ahead of his scheduled Tuesday start against the Athletics.
ANALYSIS
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Cleared to return Tuesday
PArizona Diamondbacks
Forearm
April 12, 2021
Gallen (forearm) will be activated from the 10-day injured list to start Tuesday against Oakland, Jody Jackson of FOX Sports Arizona reports.
ANALYSIS
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Could return Tuesday
PArizona Diamondbacks
Forearm
April 10, 2021
Gallen (forearm) could return to start Tuesday's game against the Athletics, Steve Gilbert of MLB.com reports.
ANALYSIS
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Throws Wednesday
PArizona Diamondbacks
Forearm
April 9, 2021
Gallen (forearm) threw 67 pitches in an intrasquad game Wednesday, Steve Gilbert of MLB.com reports.
ANALYSIS
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