Arizona Diamondbacks#17 · 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
6.34
ERA
1.56
WHIP
61
K
98.0
IP
19
GS
Stats updated Sep 7, 11:38 AM ETLast game Jul 7 at SD
Season overview
How good is he?
StatPlayerMLB AvgPercentile
Results2450POOR
Strikeouts & Control1850POOR
Run Prevention4150BELOW AVG
Consistency5350AVERAGE
Form2450POOR
Recent form
Last 5 startsPitch arsenal (2026)
Usage %Velocity
- Four-seam FB37.0%92.9 mph
- Slider21.6%88.2 mph
- Knuckle Curve18.6%81.4 mph
- Changeup17.6%86.3 mph
- Sinker5.2%92.8 mph
- Fastball0.1%89.4 mph
Hot / cold zones (vs RHB)
.733.500.217.167.400.281.286.396.400
- 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 (10 GS)
6.84
WHIP 1.66
1.05 ERA better at home
vs handedness
vs LHH
.861
vs RHH
.867
.006 OPS better vs LHH
By monthERA · IP · K
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 (12 GS)6.061.515.5
Sample sizes below four starts are not shown
Career
Frequently asked
What is Zac Gallen's ERA in 2026?+
6.34 across 19 starts and 98.0 innings, with a 1.56 WHIP and a 5.31 FIP. That ERA ranks 210th among qualified starters.
When is his next start?+
No probable start has been announced.
What pitches does he throw?+
He throws four-seam fb (37.0% at 92.9 mph mph), slider (21.6% at 88.2 mph mph), knuckle curve (18.6% at 81.4 mph mph), changeup (17.6% at 86.3 mph mph), sinker (5.2% at 92.8 mph mph), fastball (0.1% at 89.4 mph mph).
What is his P-Score?+
27 out of 100, which we label poor — 217th among 224 qualified starters.
How has he pitched in his last 5 starts?+
A 8.58 ERA, 4.8 K/9, 3.2 BB/9.