Arizona Diamondbacks · Pitcher · #63
Justin Martinez
Age 256' 3" · 225lbBats R · Throws RDebut 2023From Bonao
ERA
2.03
W-L
3-1
K
18
WHIP
1.13
WAR
0.2
FIP
2.87
League Percentile
2026 season · percentile vs 46 qualified pitchersERA
96
2.03WHIP
61
1.13Strikeouts
0
18K/9
96
12.15Wins
0
3Bottom of leagueAverage (50)Top of league
⚠ Below the qualified innings threshold. Percentiles are for reference only.
the entire league · by ERA
Top 4%
Justin Martinez's ERA (2.03) ranks above average among 46 qualified pitchers. The number on each bar is a percentile (higher is better); use the tabs to change the comparison pool.
PITCHING
Season · Career| Category | Games | ERA | Wins | Losses | Saves | Innings | Strikeouts | Walks | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| 2026 Season | 15 | 2.03 | 3 | 1 | 0 | 13.1 | 18 | 10 | 1.13 |
| Career | 106 | 3.56 | 9 | 9 | 14 | 111.1 | 145 | 69 | 1.37 |
Hover over a stat for its definition.
ARSENAL
Pitch arsenal · 2026 usage and average velocityFour-Seam36.2%avg 163 km/h
Sinker36.2%avg 164 km/h
Splitter23.3%avg 145 km/h
Slider4.3%avg 150 km/h
ADVANCED
Advanced metrics · 2026 seasonBABIP
.192
K/9
12.15
BB/9
6.75
HR/9
0.00
Quality starts
0
Whiff%
30.2%
GAME LOG
Last 10 games · includes team result| Date | Opp | Innings | Hits | ER | Walks | Strikeouts | Team |
|---|---|---|---|---|---|---|---|
| 09.27 | @ SD | 0.1 | 0 | 3 | 4 | 0 | L |
| 09.26 | @ SD | 1.0 | 0 | 0 | 0 | 2 | L |
| 09.23 | @ COL | 0.2 | 0 | 0 | 0 | 1 | W |
| 09.20 | vs NYY | 1.0 | 0 | 0 | 0 | 2 | W |
| 09.19 | vs NYY | 0.2 | 0 | 0 | 0 | 0 | W |
| 09.15 | vs MIA | 1.0 | 1 | 0 | 0 | 1 | L |
| 09.14 | vs MIA | 1.0 | 2 | 0 | 1 | 1 | W |
| 09.11 | vs TEX | 1.0 | 0 | 0 | 0 | 3 | W |
| 09.07 | @ KC | 1.0 | 0 | 0 | 1 | 1 | W |
| 09.04 | @ HOU | 1.0 | 0 | 0 | 0 | 2 | L |
SPLITS
Situational splits (2026)Home
Opp AVG.200
IP7.2
K10
WHIP1.04
Away
Opp AVG.000
IP5.2
K8
WHIP1.24
vs LHP
Opp AVG.143
IP6.1
K8
WHIP1.26
vs RHP
Opp AVG.091
IP6.2
K10
WHIP1.05
RISP
Opp AVG.125
IP2.2
K3
WHIP1.88
YEAR BY YEAR
Year-by-year · Career trendsERALower is better
▼ Trending up year over yearShow yearly figures
| Year | ERA |
|---|---|
| 2023 | 12.60 |
| 2024 | 2.48 |
| 2025 | 4.11 |
| 2026 | 2.03 |
WHIPLower is better
▼ Trending up year over yearShow yearly figures
| Year | WHIP |
|---|---|
| 2023 | 2.40 |
| 2024 | 1.31 |
| 2025 | 1.24 |
| 2026 | 1.13 |
Strikeouts
▼ Trending down year over yearShow yearly figures
| Year | Strikeouts |
|---|---|
| 2023 | 14 |
| 2024 | 91 |
| 2025 | 22 |
| 2026 | 18 |
| Year | Team | Games | ERA | Wins | Losses | Saves | Innings | Strikeouts | Walks | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | AZ | 10 | 12.60 | 0 | 0 | 1 | 10.0 | 14 | 11 | 2.40 |
| 2024 | AZ | 64 | 2.48 | 5 | 6 | 8 | 72.2 | 91 | 36 | 1.31 |
| 2025 | AZ | 17 | 4.11 | 1 | 2 | 5 | 15.1 | 22 | 12 | 1.24 |
| 2026 | AZ | 15 | 2.03 | 3 | 1 | 0 | 13.1 | 18 | 10 | 1.13 |
