Arizona Diamondbacks#23 · SP
Zac Gallen
Age 31
Contract Value $18,756,739/yr
Size 6' 2" · 189
Throws RHP
Bats Right
From Somerdale, NJ
3–9
W-L
6.07
ERA
1.55
WHIP
64
K
105.1
IP
20
GS
Stats updated Oct 22, 1:07 PM ETLast game Sep 9 at KC
Season overview
How good is he?
StatPlayerMLB AvgPercentile
Run Prevention2650POOR
Skill3350WEAK
Workload4650BELOW AVG
Consistency3550WEAK
Form2450POOR
Contact Management3050WEAK
Recent form
Last 5 startsGame log
Pitch arsenal (2026)
Usage %Velocity
- Four-seam FB36.1%92.9 mph
- Slider22.2%88.3 mph
- Knuckle Curve18.7%81.3 mph
- Changeup17.5%86.3 mph
- Sinker5.5%92.7 mph
Hot / cold zones (vs RHB)
.688.500.217.159.419.273.302.396.400
- Better than MLB avg
- Similar to MLB avg
- Worse than MLB avg
Monthly ERA (2026)
Minimum 1 GSSplits
Home / away
Home (9 GS)
5.79
WHIP 1.46
Away (11 GS)
6.59
WHIP 1.66
0.80 ERA better at home
vs handedness
vs LHH
.872
vs RHH
.859
.013 OPS better vs RHH
By monthERA · IP · K
September2.703.11
July7.7111.29
June8.3327.010
May7.0430.225
April2.1924.215
March9.004.02
Rest daysERA · WHIP · K/9
5 days (6 GS)6.541.646.0
6+ days (13 GS)5.891.525.3
Sample sizes below four starts are not shown
Career
Frequently asked
What is Zac Gallen's ERA in 2026?+
6.07 across 20 starts and 105.1 innings, with a 1.55 WHIP and a 5.41 FIP. That ERA ranks 208th among qualified starters.
When is his next start?+
No probable start has been announced.
What pitches does he throw?+
He throws four-seam fb (36.1% at 92.9 mph mph), slider (22.2% at 88.3 mph mph), knuckle curve (18.7% at 81.3 mph mph), changeup (17.5% at 86.3 mph mph), sinker (5.5% at 92.7 mph mph).
What is his P-Score?+
32 out of 100, which we label weak — 212th among 226 qualified starters.
How has he pitched in his last 5 starts?+
A 8.77 ERA, 4.2 K/9, 3.5 BB/9.