Reference layer
Current snapshot
| MLB bio context is unavailable. |
Player profile / MIA
Jakob Marsee
Player · Bats/Throws L/L · 6' 0", 180 lb · Age 25
Club MIA
Position --
Roster profile
Status Healthy / active roster
Traditional line
Season by season
| PA | R | H | HR | SB | AVG | OBP | SLG | OPS | |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 234 | 28 | 61 | 5 | 14 | .292 | .363 | .478 | .841 |
| 2026 | 616 | 83 | 119 | 11 | 23 | .231 | .348 | .359 | .707 |
| 2 Seasons | 850 | 111 | 180 | 16 | 37 | .248 | .352 | .393 | .745 |
At a glance
Season percentile report
The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.
34
Offense
percentile
percentile
Rolling projection
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
Pending
Rolling player projection appears after current-season Statcast and projection joins refresh.
Live percentile strip
Current traits vs projection tick
100th = best in MLB.
Hitting · percentile strip
Barrel%2.4%
17
Exit velocity85.3
23
Hard-hit%34.5%
32
xBA0.309
38
xSLG0.442
29
xwOBA0.314
63
BB%12.4%
89
Bat speed66.4
15
K%20.3%
65
Defense · percentile strip
Arm Runs-2.4 · CF
10
Arm Strength97.7 · CF
80
Outs Above Avg9.0 · CF
98
Range Runs8.3 · CF
94
Baserunning · percentile strip
Base Running Runs0.6 · CF
56
SB Success Rate63.6% · CF
18
Sprint Speed27.9 · CF
61
Mithrandir+
Plate skills: swing decisions and pitch-type resistance
Our research metrics for how this hitter controls the strike zone and handles each pitch family.
Avoids Bad ChasesST 74.7% · rebadged research
92
Avoids Bad TakesHPT 25.0% · rebadged research
50
Correct Decisions70.0% · rebadged research
85
Resists FastballwOBA 0.307 · validated
93
SEAGER+ Plate Discipline110
90
Resists Breaking - horizontalwOBA 0.304 · borderline
22
Resists Breaking - verticalwOBA 0.309 · insufficient sample
5
Resists ChangeupwOBA 0.292 · validated thin sample
25
Resists Cutters + splitterswOBA 0.363 · insufficient sample
4
Resists SinkerwOBA 0.323 · validated
96
Rolling form chart
xwOBA snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
Spray profile
Field-coordinate spray profile
281 Statcast batted-ball coordinates from the pitch-event feed (2026). Direction profile remains as the v1 context layer when coordinate density is limited.
Zone profile
Aggregate zone heatmap
Aggregate zone metrics from seasonal Statcast leaderboards.
Bat tracking
Swing path, attack angle, bat speed
Aggregate Savant bat-tracking metrics; not per-swing motion capture. The full swing, with the recommended path overlaid, lives in the 3D Swing Simulator.
Live layer
Delta / regression
| xwOBA Δ | -- |
| wOBA Δ | -- |
negative regression
Regression watch
Running hot. Expect some cooling.
Marsee’s wOBA sits at 0.330, but the quality of contact underneath says it should be 0.314 — a gap of 0.016, -0.6 standard deviations from the MLB norm over 629 PA. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.
Comp Engine · 2026 profile shape
Closest profiles
| Player | Similarity | Agrees on | Open |
|---|---|---|---|
| Loftin, Nick KC · R | 0.74 | Max exit velocitySprint speed | Player · Projection |
| Perdomo, Geraldo AZ · L | 0.73 | Barrel rateAvg exit velocity | Player · Projection |
| Collins, Isaac KC · L | 0.70 | Max exit velocityChase rate | Player · Projection |
| Keaschall, Luke MIN · R | 0.68 | Ground-ball rateBat speed | Player · Projection |
Profile-shape similarity, not results: six weighted feature groups standardized within this season's qualified hitters.
Mithrandir coverage
Module shelf
| Module | Cards | Latest | Signal |
|---|---|---|---|
| Hitting | 4 | 2026-08-15 | Impact contact was the main driver |
| Fielding | 27 | 2026-09-25 | 2 chances | 0 difficult plays | Run Exp -0.243 |
Projection links / recent games
Available detail
| No projection links or recent game log rows are available yet. |