Jack Kochanowicz
P · LAA
MLBAM 686799
Seasons
| Yr | BF | K% | BB% | xwOBA | Pts | PPG |
|---|---|---|---|---|---|---|
| 2026 | 99 | 18.2% | 15.2% | 0.353 | 64 | 12.80 |
| 2025 | 515 | 14.0% | 11.3% | 0.372 | 14 | 0.58 |
| 2024 | 266 | 9.4% | 3.8% | 0.349 | 65 | 5.91 |
2026 MLB Percentile Rankings
Arsenal
FB Velocity
85
96.1
FB Spin
32
2208
Extension
34
6.34
Results
xwOBA
23
0.353
Barrel %
27
10.6
Hard-Hit %
65
36.4
K %
30
18.2
BB %
6
15.2
Chase %
11
24.7
Whiff %
60
24.2
Command & Stuff
Pitching+
Expected run-value conceded per pitch against a rational hitter, standardized against the season. 100 = avg · 110 = 1 SD better.
Pitching+
109
≈ 80th pctl
Stuff+
104
if they swing
Command+
102
out-of-zone take RV
Strike quality+
106
RV of in-zone pitches
Crushable pitches
9.4%
39 meatballs
Putaway counts (0-2, 1-2)
0.046
RV per pitch · league 0.042
+0.004 worse than avg · 114 pitches
Lower RV = more wasted whiff chances when they choose not to put hitters away.
Hitter's counts (3-0, 3-1, 2-0)
0.015
RV per pitch · league 0.029
-0.014 better than avg · 36 pitches
How often they groove get-me-overs vs. nibble safely.
Based on 417 pitches. RV = Statcast delta_run_exp; lower = better for the pitcher.
2026 Movement Profile (Induced Break)
MLB Avg.
| SI | CH | FF | SL | |
|---|---|---|---|---|
| Usage | 35% | 27% | 22% | 16% |
| MPH | 95.9 | 90.2 | 96.3 | 86.8 |
| RHP Avg | 94.3 | 86.9 | 95.0 | 86.7 |
2026 Tunneling
Where pitches are when the hitter commits — and where they end up. Tighter cluster on the left = more deceptive arsenal.
At Decision
23 ft out · ~280ms before arrival
At the Plate
Where they actually cross
SICHFFSL
Decision point computed from Statcast kinematics (vx0/vy0/vz0, ax/ay/az) by projecting each pitch back to y = 23 ft. Coordinates in catcher’s view: 1B on the left, 3B on the right. RHP.
2026 Divergence from a Shared Origin
Every pitch type launched from the same decision-point — how far apart they end up by the plate. Bigger fan = harder arsenal to square up.
Distances from origin (in inches) show how far each pitch type separates itself from the common launch point by plate arrival. RHP.