Jack Leiter
SP · TEX
MLBAM 683004
Seasons
| Yr | BF | K% | BB% | xwOBA | Pts | PPG |
|---|---|---|---|---|---|---|
| 2026 | 90 | 26.7% | 10.0% | 0.364 | 54 | 10.80 |
| 2025 | 646 | 22.9% | 10.4% | 0.327 | 283 | 9.43 |
| 2024 | 173 | 17.9% | 9.8% | 0.380 | -9 | -0.90 |
2026 MLB Percentile Rankings
Arsenal
FB Velocity
84
96.0
FB Spin
84
2439
Extension
61
6.60
Results
xwOBA
16
0.364
Barrel %
4
16.1
Hard-Hit %
12
50.0
K %
77
26.7
BB %
34
10.0
Chase %
49
29.6
Whiff %
94
30.5
Command & Stuff
Pitching+
Expected run-value conceded per pitch against a rational hitter, standardized against the season. 100 = avg · 110 = 1 SD better.
Pitching+
110
≈ 84th pctl
Stuff+
104
if they swing
Command+
107
out-of-zone take RV
Strike quality+
105
RV of in-zone pitches
Crushable pitches
9.5%
41 meatballs
Putaway counts (0-2, 1-2)
0.033
RV per pitch · league 0.042
-0.009 better than avg · 131 pitches
Lower RV = more wasted whiff chances when they choose not to put hitters away.
Hitter's counts (3-0, 3-1, 2-0)
-0.008
RV per pitch · league 0.029
-0.037 better than avg · 30 pitches
How often they groove get-me-overs vs. nibble safely.
Based on 431 pitches. RV = Statcast delta_run_exp; lower = better for the pitcher.
2026 Movement Profile (Induced Break)
MLB Avg.
| FF | CH | SL | CU | FC | SI | |
|---|---|---|---|---|---|---|
| Usage | 37% | 23% | 17% | 8% | 8% | 7% |
| MPH | 96.7 | 90.1 | 86.5 | 81.8 | 92.6 | 96.2 |
| RHP Avg | 95.0 | 86.9 | 86.7 | 80.2 | 89.8 | 94.3 |
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
FFCHSLCUFCSI
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.