Jakob Marsee
CFQualifiedMiami Marlins · NL · Age 25 · Bats L / Throws L · 400 PA
Most likely driver: plate-discipline erosion — expanding the zone (46% confidence).
Edge breakdown
Short, flat, repeatable swing — squares the ball up and rarely misses, trades away loft.
The swing
Percentiles vs all tracked hitters. Attack angle/direction and tilt are swing-weighted averages across batting sides. Swing type from editable rules — first match wins.
vs pitch types
| Pitch | PA | wOBA | xwOBA | lg xwOBA | Whiff% | K% | RV/100 |
|---|---|---|---|---|---|---|---|
| 4-Seam Fastball | 152 | .285 | .316 | .327 | 9.8lg 22.0 | 14.5 | -0.8 |
| Sinker | 68 | .259 | .277 | .351 | 11.0lg 13.7 | 23.5 | -2.5 |
| Slider | 42 | .208 | .197 | .288 | 35.4lg 33.5 | 42.9 | -2.2 |
| Cutter | 38 | .285 | .278 | .351 | 11.6lg 22.5 | 13.2 | -1.8 |
| Changeup | 37 | .403 | .365 | .278 | 30.7lg 31.5 | 24.3 | 2.6 |
| Curveball | 21 | .381 | .407 | .281 | 17.2lg 30.8 | 23.8 | 2.4 |
| Sweeper | 22 | .250 | .261 | .263 | 36.4lg 31.0 | 40.9 | 0.3 |
| Splitter | 16 | .320 | .343 | .263 | 52.0lg 32.4 | 25.0 | 1.7 |
xwOBA green/red when 20+ points above/below league vs that pitch. RV/100 = run value per 100 pitches seen (positive favors the hitter). Source: Savant pitch arsenal stats.
Where he stands
top-down, side-agnostic (mirrored for LHB)
depth 30.7" () · off plate 27.0" ()
Where he meets the ball
average intercept, inches vs the front of the plate
63 pctl ·
Timing spectrum
share of competitive swings by timing
on-time 67.6% (+0.0% vs prior) · late 11.5% (+0.0% vs prior)
Barrel accuracy
avg miss from the sweet spot · dashed ring = league
99 pctl (lower is better) · +0.0" vs prior
What this can't see: Joint kinetics, hip-shoulder separation, and kinematic sequencing (Hawkeye/KinaTrax, team-internal — never estimated here). Stance angle and foot separation (Savant visuals only, no export). Release extension (column exported empty; needs pitch-level ingest).