Arizona Diamondbacks#63 · RP
Justin Martinez
Age 25
Contract Value $3,600,000/yr
Size 6' 3" · 225
Throws RHP
Bats Right
From Bonao, Dominican Republic
3–1
W-L
2.03
ERA
1.13
WHIP
18
K
13.1
IP
0
GS
P-Score
P-Score not yet available
Stats updated Oct 4, 5:03 PM ET
Season overview
How good is he?
StatPlayerMLB AvgPercentile
Run Prevention9750ELITE
Skill6250ABOVE AVG
Workload2050POOR
Consistency5050AVERAGE
Form5050AVERAGE
Contact Management5050AVERAGE
Game log
Pitch arsenal (2026)
Usage %Velocity
- Sinker36.6%101.6 mph
- Four-seam FB34.5%101.5 mph
- Splitter23.9%90.3 mph
- Slider4.9%93.0 mph
Hot / cold zones (vs RHB)
.000-.000--.200.000.333.000
- Better than MLB avg
- Similar to MLB avg
- Worse than MLB avg
Splits
vs handedness
vs LHH
.500
vs RHH
.188
.312 OPS better vs RHH
Career
Frequently asked
What is Justin Martinez's ERA in 2026?+
2.03 across 0 starts and 13.1 innings, with a 1.13 WHIP and a 2.58 FIP.
When is his next start?+
No probable start has been announced.
What pitches does he throw?+
He throws sinker (36.6% at 101.6 mph mph), four-seam fb (34.5% at 101.5 mph mph), splitter (23.9% at 90.3 mph mph), slider (4.9% at 93.0 mph mph).
What is his P-Score?+
P-Score is not yet available for this pitcher.
How has he pitched in his last five starts?+
Fewer than three starts are available, so a last-five comparison is not shown.