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  • Projections
    In-house Bayesian model · career prior + aging × stuff/discipline signals
  • Plate Discipline
    Decision+ · chase / passive cost · K% · BB%
  • Command & Stuff
    Pitching+ · Stuff+ · Command+ · meatball rate
  • Pitcher Stuff Lab
    In-zone whiff · xwOBAcon · tunnel · deception · count predictability
  • Stuff Model (diag)
    From-scratch XGBoost training runs, feature importance, pitcher grades
  • Expected Points
    Luck-neutral fantasy points · xSLG / xwOBA · ΔPts
  • Hitter Frontier
    Power × discipline tradeoff · Pareto-frontier hitters
  • Pitcher Frontier
    Process × contact-suppression · pound the zone vs limit damage
  • Hitter Vulnerabilities
    Biggest pitch-trait strengths & weaknesses · vs league or vs own
  • AAA Hitters
    Triple-A bats · xwOBA · contact quality · discipline · frontier
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Jake Mangum

Jake Mangum

OF·PIT
Compare
Compare
PA
429
H
120
HR
3
AVG
.296
xwOBA
.276
PPG
1.80
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
202677289.301.350.368.067.28317.3%4.8%12.5%2191441.87—
2025116429.296
2025 MLB Percentiles

Hitting Profile

429 PA — below qualified cutoff. Percentiles vs. qualified pool (faded).

Expected Results
xwOBA
0
.276
xBA
19
.236
.330
.367
.071
.276
14.9%
4.4%
10.5%
3
26
209
1.80
—
xSLG
0
.318
Quality of Contact
Avg EV
10
86.8
Median EV
15
90.2
90th % EV
12
102.0
Barrel %
4
2.6
Hard-Hit %
12
33.2
Sweet-Spot %
0
27.1
Bat Speed
Avg
4
65.7
Median
3
66.6
90th %
7
73.0
Plate Discipline
Chase %
1
43.6
Whiff %
82
16.9
K %
82
14.9
BB %
3
4.4
Swing Decisions

Plate Discipline · Decision+

Expected-run-value of every swing-or-take decision, against a league-average batter’s optimum. 100 = avg · 110 = 1 SD better.

Decision+
97
≈ 37th pctl
Chase cost
-29.9r
365 swings @ bad pitch
Passive cost
-7.9r
138 takes @ hittable pitch
Swing rate
62.0%
1,431 pitches seen
Runs per 100
-2.64
lg avg -2.53
Count
View
+67%62+29%74+0%63+46%13+30%20+9%22+10%20+38%26+39%18+0%11+79%28+13%48-17%70-10%72+0%39+79%47+69%13+81%16+0%44-28%68-20%66-12%52+67%30+57%7+22%18+40%20+0%14+28%39+39%23+57%14+33%6+0%63+17%65+11%942CATCHER'S VIEW
Judgment — swing% vs optimal
−35%−15%0+15%+35%
  • Red cells — swings more than an optimal batter would here (chasing).
  • Blue cells — swings less than optimal (too passive).
  • Number in cell: swing%-delta vs optimal. Top-right: pitches seen.
Total pitches shown: 1,000