← Arizona Diamondbacks
Justin Martinez
Arizona Diamondbacks
RP · #63 · Bats R · Throws R · 6'3" · 225 lb · Age 25 · 4 yrs in MLB
2026 grade
52.2
- Runs prevented
- +2.2
- IP · ERA
- 13.1 · 2.02
- K · BB
- 18 · 10
- Rank
- Not qualified
What the grade is made of
Runs each part saves or costs against an average pitcher facing the same batters. Contact counts a quarter for how it turned out, because over a season that's mostly the fielders and luck.
- Home runs allowed0 vs 2 avg+2.3
- Walks10 vs 5 avg−1.7
- Strikeouts18 vs 12 avg+1.6
- Hit batters1 vs 1 avg−0.1
- Contact allowed (how it turned out counts a quarter)26 vs 36 avg+0.1
2026 game log: pitching
Game grades need 3 batters faced; starts are ranked against starts, relief outings against relief outings.
| Game | Result | Dec | IP | H | R | ER | BB | K | HR | PC | Grade |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun, Sep 27@SD | L 4-9 | L | 0.1 | 0 | 3 | 3 | 4 | 0 | 0 | 22 | 12.5 |
| Sat, Sep 26@SD | L 7-10 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 16 | 73.4 | |
| Wed, Sep 23@COL | W 5-3 | H | 0.2 | 0 | 0 | 0 | 0 | 1 | 0 | 8 | – |
| Sun, Sep 20vsNYY | W 8-4 | W | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 12 | 83.1 |
| Sat, Sep 19vsNYY | W 5-3 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | – | |
| Tue, Sep 15vsMIA | L 2-4 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 10 | 45.4 | |
| Mon, Sep 14vsMIA | W 8-7 | 1.0 | 2 | 0 | 0 | 1 | 1 | 0 | 17 | 13.0 | |
| Fri, Sep 11vsTEX | W 9-1 | H | 1.0 | 0 | 0 | 0 | 0 | 3 | 0 | 9 | 81.8 |
| Mon, Sep 7@KC | W 5-4 | W | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 20 | 65.9 |
| Fri, Sep 4@HOU | L 1-3 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 11 | 79.1 | |
| Tue, Sep 1vsPHI | L 1-7 | 1.0 | 1 | 0 | 0 | 1 | 1 | 0 | 21 | 39.8 | |
| Sat, Aug 29@SF | L 2-7 | 0.2 | 0 | 2 | 0 | 1 | 2 | 0 | 25 | 61.5 | |
| Tue, Aug 25vsCHC | W 5-4 | W | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 17 | 45.1 |
| Fri, Aug 21vsCIN | W 9-0 | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 20 | 64.5 | |
| Tue, Aug 18@BOS | L 4-9 | 1.0 | 0 | 0 | 0 | 1 | 0 | 0 | 19 | 47.8 |
Scores, box scores and play-by-play from ESPN. The run values and park factors behind the grades were worked out from Retrosheet's play-by-play: the information used here was obtained free of charge from and is copyrighted by Retrosheet. Interested parties may contact Retrosheet at www.retrosheet.org.