Pitcher · 2026
Jack Kochanowicz
- Age
- 26
- B/T
- L/R
- Height
- 6' 7"
- Weight
- 228 lb
- Number
- #41
- Born
- December 22, 2000 in Philadelphia, PA, USA
- MLB debut
- July 11, 2024
- Drafted
- 2019, round 3
- High school
- Harriton
- dbWAR
- -.9 3 season(s)
- IP
- 64.0
- ERA
- 6.19
- FIP
- 4.96
- K/9
- 6.6
- FIP−
- 119 100 = avg
Jack Kochanowicz is a starting pitcher for the Los Angeles Angels. In 2026 he struck out 47 batters over 64.0 innings across 13 appearances, 13 of them starts, going 2-5. His ERA of 6.19 was 48.2% higher than the league average of 4.18 — 15th of 18 on his team, and 427th of 467 among MLB pitchers with 20+ innings. Stripping out defence, his 4.96 FIP suggests he pitched better than his ERA shows. He missed bats on 23.6% of swings (10.7% of every pitch he threw), walked 12.2% of the batters he faced and struck out 15.9%. His 0.1 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.
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 | 159 | 129 | 38 | 2 | 24 | 24 | .295 | .409 | .411 | .370 | 15.1% |
| vs RHB | 137 | 122 | 27 | 5 | 12 | 23 | .221 | .299 | .352 | .294 | 16.8% |
Pitch sequencing
What Jack Kochanowicz 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 Kochanowicz throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2026.
| Sinker | 424 | 95.7 | 2,137 | 41.5% | 17.3% | |
| Changeup | 257 | 89.9 | 2,170 | 44.0% | 31.1% | |
| Four-Seam Fastball | 245 | 96.2 | 2,284 | 44.5% | 18.6% | |
| Slider | 180 | 85.6 | 2,824 | 36.7% | 37.5% |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 13 | 13 | 64.0 | 2 | 5 | 0 | 65 | 44 | 47 | 36 | 6.19 | 4.96 | 1.58 | 6.6 | 5.1 | 148 | 119 | 0.1 | |
| 2025 | 23 | 23 | 111.0 | 3 | 11 | 0 | 136 | 84 | 72 | 58 | 6.81 | 6.05 | 1.75 | 5.8 | 4.7 | 164 | 146 | -1.2 | |
| 2024 | 11 | 11 | 65.1 | 2 | 6 | 0 | 68 | 29 | 25 | 10 | 3.99 | 4.62 | 1.19 | 3.4 | 1.4 | 98 | 113 | 0.3 |
Head to head
Put Jack Kochanowicz beside up to three others.
Similar players
Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.
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.