Players · W · Pitcher · 2026 regular season
Jack Weisenburger
- Age
- 29
- B/T
- R/R
- Height
- 6' 3"
- Weight
- 220 lb
- Number
- #82
- Born
- October 8, 1997 in Rockford, MI, United States
- MLB debut
- August 9, 2026
- Drafted
- 2019, round 20
- College
- Michigan
- dbWAR
- .4 Regular season, 1 season(s)
- IP
- 12.2
- ERA
- 2.13
- FIP
- 1.84
- K/9
- 9.9
- FIP−
- 44 100 = avg
Jack Weisenburger is a relief pitcher for the New York Mets. In 2026 he struck out 14 batters over 12.2 innings across 7 appearances, going 0-0. His ERA of 2.13 was 49.0% lower than the league average of 4.18. Stripping out defence, his 1.84 FIP suggests the ERA was no fluke. He missed bats on 26.0% of swings (13.2% of every pitch he threw), walked 8.0% of the batters he faced and struck out 28.0%. His 0.4 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, 2026 regular season.
Pitching Regular season
Standard and advanced, by season. Regular-season games only.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | NYM | 7 | 0 | 12.2 | 0 | 0 | 0 | 10 | 3 | 14 | 4 | 2.13 | 1.84 | 1.11 | 9.9 | 2.8 | 51 | 44 | 0.4 | — |
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 | 25 | 22 | 6 | 0 | 3 | 8 | .273 | .360 | .318 | .316 | 32.0% |
| vs RHB | 25 | 23 | 4 | 0 | 1 | 6 | .174 | .208 | .217 | .194 | 24.0% |
Pitch sequencing
What Jack Weisenburger throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Jack Weisenburger throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Four-Seam Fastball | 63 | 95.0 | 2,194 | 42.9% | 33.3% | 10 | — | — | |
| Sweeper | 49 | 82.0 | 2,351 | 44.9% | 32.0% | 11 | — | — | |
| Cutter | 38 | 89.6 | 2,315 | 55.3% | 13.0% | 12 | — | — | |
| Sinker | 37 | 94.1 | 2,122 | 62.2% | 25.0% | 7 | — | — | |
| Changeup | 15 | 85.7 | 1,605 | 66.7% | 25.0% | 4 | — | — |
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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.