Players · P · Pitcher · 2025
A.J. Puk
- Age
- 30
- B/T
- L/L
- Height
- 6' 7"
- Weight
- 248 lb
- Number
- #33
- Born
- April 25, 1995 in Minneapolis, MN, United States
- MLB debut
- August 21, 2019
- Drafted
- 2016, round 1
- College
- Florida
- High school
- Washington
- Salary, 2025
- $2.95M
- dbWAR
- 3.5 6 season(s)
- IP
- 8.0
- ERA
- 3.38
- FIP
- 4.51
- K/9
- 13.5
- FIP−
- 108 100 = avg
A.J. Puk was a relief pitcher for the Arizona Diamondbacks. In 2025 he struck out 12 batters over 8.0 innings across 8 appearances, going 0-0. His ERA of 3.38 was 18.8% lower than the league average of 4.16. Stripping out defence, his 4.51 FIP suggests that his ERA had some help behind him. He missed bats on 32.5% of swings (17.3% of every pitch he threw), walked 5.7% of the batters he faced and struck out 34.3%. His 0.0 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2025.
WAR by season
Pitching
Standard and advanced, by season.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | AZ | 8 | 0 | 8.0 | 0 | 0 | 4 | 8 | 3 | 12 | 2 | 3.38 | 4.51 | 1.25 | 13.5 | 2.3 | 81 | 108 | 0.0 | |
| 2024 | MIA/AZ | 62 | 4 | 71.1 | 4 | 9 | 3 | 51 | 25 | 88 | 28 | 3.15 | 2.87 | 1.11 | 11.1 | 3.5 | 77 | 70 | 1.6 | |
| 2023 | MIA | 58 | 0 | 56.2 | 7 | 5 | 15 | 54 | 25 | 78 | 13 | 3.97 | 3.59 | 1.18 | 12.4 | 2.1 | 92 | 83 | 0.8 | |
| 2022 | OAK | 62 | 0 | 66.1 | 4 | 3 | 4 | 53 | 23 | 76 | 23 | 3.12 | 3.69 | 1.15 | 10.3 | 3.1 | 79 | 93 | 0.6 | |
| 2021 | OAK | 12 | 0 | 13.1 | 0 | 3 | 0 | 18 | 9 | 16 | 6 | 6.07 | 3.32 | 1.80 | 10.8 | 4.0 | 142 | 78 | 0.2 | |
| 2019 | OAK | 10 | 0 | 11.1 | 2 | 0 | 0 | 10 | 4 | 13 | 5 | 3.18 | 3.39 | 1.32 | 10.3 | 4.0 | 71 | 75 | 0.2 |
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 13 | 13 | 3 | 1 | 0 | 6 | .231 | .231 | .538 | .319 | 46.2% |
| vs RHB | 22 | 19 | 5 | 1 | 2 | 6 | .263 | .364 | .526 | .385 | 27.3% |
Pitch sequencing
What A.J. Puk throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what A.J. Puk throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Four-Seam Fastball | 97 | 96.4 | 2,299 | 63.9% | 31.6% | 19 | .263 | .984 | |
| Slider | 57 | 85.4 | 2,297 | 42.1% | 34.6% | 13 | — | — |
Head to head
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wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.