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Justin Martinez
P
AZ
2026 season
- GP
- 15
- W-L
- 3-1
- ERA
- 2.02
- WHIP
- 1.12
- K
- 18
- IP
- 13.1
Game log
| Date | Opp | Result | Dec | IP | H | ER | BB | K |
|---|---|---|---|---|---|---|---|---|
| Sep 27 | @SD | L 4-9 | L | 0.1 | 0 | 3 | 4 | 0 |
| Sep 26 | @SD | L 7-10 | - | 1.0 | 0 | 0 | 0 | 2 |
| Sep 23 | @COL | W 5-3 | - | 0.2 | 0 | 0 | 0 | 1 |
| Sep 20 | vs NYY | W 8-4 | W | 1.0 | 0 | 0 | 0 | 2 |
| Sep 19 | vs NYY | W 5-3 | - | 0.2 | 0 | 0 | 0 | 0 |
| Sep 15 | vs MIA | L 2-4 | - | 1.0 | 1 | 0 | 0 | 1 |
| Sep 14 | vs MIA | W 8-7 | - | 1.0 | 2 | 0 | 1 | 1 |
| Sep 11 | vs TEX | W 9-1 | - | 1.0 | 0 | 0 | 0 | 3 |
| Sep 7 | @KC | W 5-4 | W | 1.0 | 0 | 0 | 1 | 1 |
| Sep 4 | @HOU | L 1-3 | - | 1.0 | 0 | 0 | 0 | 2 |
| Sep 1 | vs PHI | L 1-7 | - | 1.0 | 1 | 0 | 1 | 1 |
| Aug 29 | @SF | L 2-7 | - | 0.2 | 0 | 0 | 1 | 2 |
| Aug 25 | vs CHC | W 5-4 | W | 1.0 | 1 | 0 | 0 | 1 |
| Aug 21 | vs CIN | W 9-0 | - | 1.0 | 0 | 0 | 1 | 1 |
| Aug 18 | @BOS | L 4-9 | - | 1.0 | 0 | 0 | 1 | 0 |
| 2025 season | ||||||||
| Jun 9 | vs SEA | W 8-4 | - | 0.2 | 0 | 1 | 1 | 2 |
| Jun 4 | @ATL | W 2-1 | S | 1.2 | 0 | 1 | 4 | 4 |
| Jun 1 | vs WSH | W 3-1 | S | 1.0 | 0 | 0 | 0 | 2 |
| May 26 | vs PIT | W 5-0 | - | 1.0 | 0 | 0 | 0 | 1 |
| May 24 | @STL | L 5-6 | L | 1.0 | 2 | 2 | 1 | 2 |
| Apr 30 | @NYM | W 4-3 | - | 0.0 | 1 | 2 | 2 | 0 |
| Apr 27 | vs ATL | W 6-4 | S | 1.0 | 1 | 1 | 2 | 0 |
| Apr 26 | vs ATL | L 7-8 | L | 1.0 | 0 | 0 | 1 | 0 |
| Apr 23 | vs TB | L 6-7 | - | 1.0 | 0 | 0 | 0 | 1 |
| Apr 17 | @MIA | W 6-4 | - | 0.1 | 0 | 0 | 1 | 1 |
| Apr 16 | @MIA | W 6-2 | - | 1.0 | 0 | 0 | 0 | 0 |
| Apr 13 | vs MIL | W 5-2 | - | 1.0 | 0 | 0 | 0 | 2 |
| Apr 8 | vs BAL | W 4-3 | S | 1.0 | 0 | 0 | 0 | 1 |
| Apr 4 | @WSH | W 6-4 | S | 1.0 | 1 | 0 | 0 | 1 |
| Apr 1 | @NYY | W 7-5 | - | 1.0 | 0 | 0 | 0 | 3 |
| Mar 30 | vs CHC | W 10-6 | W | 0.2 | 2 | 0 | 0 | 2 |
| Mar 29 | vs CHC | L 3-4 | - | 1.0 | 0 | 0 | 0 | 0 |
| 2024 season | ||||||||
| Sep 28 | vs SD | L 0-5 | - | 1.1 | 0 | 0 | 0 | 1 |
| Sep 25 | vs SF | W 8-2 | - | 1.1 | 3 | 1 | 1 | 2 |
| Sep 22 | @MIL | L 9-10 | L | 0.1 | 3 | 1 | 0 | 1 |
| Sep 20 | @MIL | W 7-4 | - | 1.0 | 2 | 0 | 0 | 2 |
| Sep 19 | @MIL | W 5-1 | - | 1.0 | 0 | 0 | 0 | 1 |
| Sep 18 | @COL | W 9-4 | - | 1.0 | 0 | 0 | 1 | 0 |
| Sep 15 | vs MIL | W 11-10 | - | 1.2 | 1 | 1 | 2 | 2 |
| Sep 13 | vs MIL | L 1-2 | - | 1.0 | 0 | 0 | 0 | 1 |
| Sep 10 | vs TEX | W 6-0 | - | 1.0 | 0 | 0 | 0 | 2 |
| Sep 4 | @SF | W 6-4 | - | 1.0 | 2 | 2 | 1 | 1 |
| Sep 3 | @SF | W 8-7 | S | 1.1 | 3 | 1 | 1 | 3 |
| Aug 31 | vs LAD | L 6-8 | - | 0.2 | 1 | 0 | 0 | 0 |
| Aug 29 | vs NYM | L 2-3 | L | 1.0 | 2 | 1 | 0 | 2 |
| Aug 28 | vs NYM | W 8-5 | S | 1.0 | 0 | 0 | 0 | 1 |
| Aug 25 | @BOS | W 7-5 | S | 1.0 | 1 | 1 | 0 | 1 |
| Aug 21 | @MIA | W 10-8 | S | 1.2 | 2 | 1 | 1 | 4 |
| Aug 20 | @MIA | W 3-1 | S | 1.0 | 0 | 0 | 0 | 1 |
| Aug 18 | @TB | L 7-8 | L | 1.1 | 1 | 0 | 2 | 2 |
| Aug 16 | @TB | L 4-5 | L | 0.2 | 1 | 0 | 1 | 2 |
| Aug 12 | vs COL | W 5-4 | S | 1.0 | 1 | 0 | 0 | 0 |
| Aug 9 | vs PHI | W 3-2 | W | 1.0 | 1 | 0 | 0 | 1 |
| Aug 7 | @CLE | W 5-3 | S | 1.0 | 1 | 0 | 1 | 2 |
| Aug 5 | @CLE | W 7-6 | S | 1.0 | 0 | 0 | 1 | 2 |
| Aug 4 | @PIT | W 6-5 | - | 1.0 | 1 | 0 | 0 | 3 |
| Aug 2 | @PIT | W 9-8 | - | 1.0 | 0 | 0 | 1 | 3 |
| Jul 30 | vs WSH | W 17-0 | - | 1.0 | 0 | 0 | 0 | 1 |
| Jul 28 | vs PIT | L 5-6 | L | 0.1 | 1 | 3 | 2 | 0 |
| Jul 27 | vs PIT | W 9-5 | - | 1.0 | 0 | 0 | 0 | 2 |
| Jul 24 | @KC | W 8-6 | - | 1.0 | 0 | 0 | 1 | 1 |
| Jul 21 | @CHC | L 1-2 | - | 1.0 | 2 | 1 | 1 | 0 |
| Jul 20 | @CHC | W 3-0 | - | 1.0 | 0 | 0 | 0 | 2 |
| Jul 19 | @CHC | W 5-2 | - | 0.0 | 1 | 1 | 2 | 0 |
| Jul 14 | vs TOR | L 7-8 | - | 1.0 | 0 | 0 | 0 | 1 |
| Jul 12 | vs TOR | W 5-4 | W | 1.0 | 0 | 0 | 0 | 1 |
| Jul 10 | vs ATL | W 7-5 | - | 1.0 | 1 | 0 | 0 | 2 |
| Jul 8 | vs ATL | L 4-5 | L | 2.0 | 1 | 0 | 0 | 1 |
| Jul 7 | @SD | W 9-1 | - | 1.0 | 0 | 0 | 0 | 0 |
| Jul 4 | @LAD | W 9-3 | W | 3.0 | 2 | 0 | 0 | 5 |
| Jul 2 | @LAD | L 5-6 | - | 1.1 | 1 | 2 | 1 | 1 |
| Jun 28 | vs ATH | L 4-9 | - | 1.2 | 2 | 0 | 0 | 4 |
| Jun 27 | vs MIN | L 6-13 | - | 1.0 | 1 | 0 | 0 | 0 |
| Jun 23 | @PHI | L 1-4 | - | 1.0 | 2 | 2 | 2 | 0 |
| Jun 18 | @WSH | W 5-0 | - | 1.0 | 1 | 0 | 0 | 1 |
| Jun 16 | vs CWS | W 12-5 | - | 1.0 | 3 | 1 | 0 | 1 |
| Jun 14 | vs CWS | W 7-1 | - | 1.0 | 1 | 0 | 0 | 0 |
| Jun 11 | vs LAA | W 9-4 | - | 1.0 | 1 | 0 | 0 | 1 |
| Jun 9 | @SD | W 9-3 | - | 1.1 | 0 | 0 | 1 | 1 |
| Jun 4 | vs SF | W 8-5 | - | 1.0 | 1 | 0 | 1 | 2 |
| Jun 2 | @NYM | W 5-4 | W | 2.0 | 0 | 0 | 0 | 3 |
| May 30 | @NYM | L 2-3 | - | 3.0 | 3 | 0 | 1 | 2 |
| May 29 | @TEX | L 1-6 | - | 0.1 | 1 | 0 | 0 | 0 |
| May 26 | vs MIA | L 1-3 | - | 1.1 | 0 | 0 | 1 | 2 |
| May 22 | @LAD | W 6-0 | - | 1.0 | 0 | 0 | 0 | 1 |
| May 18 | vs DET | L 3-8 | - | 0.1 | 1 | 0 | 1 | 0 |
| May 13 | vs CIN | W 6-5 | W | 1.0 | 1 | 0 | 0 | 2 |
| May 12 | @BAL | W 9-2 | - | 1.0 | 0 | 0 | 1 | 0 |
| May 10 | @BAL | L 2-4 | - | 1.2 | 0 | 0 | 2 | 5 |
| May 5 | vs SD | W 11-4 | - | 1.0 | 1 | 0 | 0 | 0 |
| May 3 | vs SD | L 1-7 | - | 2.0 | 4 | 0 | 0 | 4 |
| Apr 30 | vs LAD | W 4-3 | - | 0.1 | 1 | 1 | 2 | 0 |
| Apr 29 | vs LAD | L 4-8 | - | 0.2 | 0 | 0 | 0 | 0 |
| Apr 26 | @SEA | L 1-6 | - | 2.0 | 0 | 0 | 0 | 3 |
| Apr 19 | @SF | W 17-1 | - | 1.1 | 0 | 0 | 3 | 1 |
| Apr 17 | vs CHC | L 3-5 | - | 1.2 | 0 | 0 | 1 | 1 |
| 2023 season | ||||||||
| Oct 1 | vs HOU | L 1-8 | - | 2.0 | 1 | 1 | 1 | 1 |
| Aug 25 | vs CIN | W 10-8 | - | 0.1 | 2 | 4 | 1 | 1 |
| Aug 22 | vs TEX | W 6-3 | - | 0.1 | 1 | 2 | 1 | 1 |
| Aug 21 | vs TEX | W 4-3 | - | 1.0 | 0 | 0 | 1 | 2 |
Latest news
Martinez struck out three over a perfect sixth inning in Friday's 9-1 win over the Rangers.
Martinez needed just nine pitches to strike out Wyatt Langford, Evan Carter and Jake Burger. Five of those nine pitches resulted in swinging strikes. Martinez has yet to allow an earned run over eight appearances since being activated from the 60-day injured list. He's struck out 11, walked five and allowed two hits over 7.2 innings.
RotoWire via ESPN · Sep 12
Martinez (2-0) earned the win after striking out one and walking one in a scoreless ninth inning Monday against the Royals.
Martinez was the fifth Arizona pitcher used in a scoreless game and kept the deadlock intact despite issuing a walk. His clean frame completed nine shutout innings from the Diamondbacks' bullpen committee before the offense erupted for five runs in the top of the 10th. That rally put Martinez in line for his second win of the season, and he has yet to allow an earned run this year in seven appearances while posting an 8:5 K:BB across 6.2 frames.
RotoWire via ESPN · Sep 8
Martinez allowed one walk over a scoreless and hitless inning in Tuesday's 9-4 loss to Boston. He also hit a batter and uncorked a wild pitch.
Martinez made his first appearance since being reinstated from the 60-day injured list Monday. It had been 435 days since he last pitched in the majors, as Martinez spent that time recovering from a second Tommy John elbow surgery. The right-handed reliever came on to pitch the eighth inning in a low-leverage situation, but the one-time Arizona closer could regain the ninth-inning role over the final stretch of the season.
RotoWire via ESPN · Aug 19
The Diamondbacks reinstated Martinez (elbow) from the 60-day injured list Monday.
Martinez has been cleared to make his 2026 debut with the Diamondbacks following a lengthy recovery from Tommy John surgery, which he underwent June 25, 2025. The hard-throwing reliever looked sharp over his four rehab appearances between Single-A Visalia and Triple-A Reno, firing four scoreless, no-hit innings while striking out six and issuing just one walk. The Diamondbacks' closer situation has been unsettled over the past three weeks after Paul Sewald lost the job and eventually, his roster spot, so Martinez could make for a viable speculative pickup for fantasy managers mining for saves. Before requiring surgery last summer, Martinez had previously been a key high-leverage arm for Arizona in 2024 and the early part of the 2025 season.
RotoWire via ESPN · Aug 17
Martinez (elbow) struck out two and over a perfect inning in a rehab appearance for Triple-A Reno on Tuesday.
Martinez moved his rehab up from Single-A Visalia to Reno for the third appearance of his rehab. Between the two stops, the right-hander has struck out five and allowed no hits and one walk over three scoreless frames. Martinez is scheduled for at least one more appearance with Reno on Thursday, per Alex Weiner of ArizonaSports.com, but Martinez could be activated at some point during the team's road trip, which runs Friday through Wednesday.
RotoWire via ESPN · Aug 13
Martinez (elbow) is expected to make up to two more rehab appearances before being reinstated from the 60-day injured list, John Gambadoro of Arizona Sports 98.7 FM reports.
Making his way back from the second Tommy John surgery of his career, Martinez has made two scoreless rehab appearances with Single-A Visalia, posting a 3:1 K:BB over two hitless innings. According to Gambadoro, Martinez is likely to be activated either Sunday in Atlanta or Monday in Boston. The 25-year-old could reclaim the Diamondbacks' closer job if he looks sharp, though Martinez may first be eased back in with some lower-leverage appearances.
RotoWire via ESPN · Aug 11