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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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Position cohort

Hitting value vs. C peers

Rank #41 of 67

Each bar is one C, ordered left-to-right by Value (blended). Center dot is VORP; whiskers span V⁻ → V⁺. This player is highlighted in blue.

-300-200-1000+100Jonah Heim
Jonah Heim · #41
V⁻ —VORP -282V⁺ —
Jonah Heim

Jonah Heim

C·ATH
Compare
Compare
PA
265
H
56
HR
11
AVG
.230
xwOBA
.299
PPG
1.89
Career Seasons
YrGPAAVGOBPSLGISOxwOBAK%BB%K-BB%HRSBPtsPPGxPPG
Proj26103.228.291.369.141.29619.1%7.8%11.3%30461.76—
202671265.230
2026 MLB Percentiles

Hitting Profile

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

Expected Results
xwOBA
13
.299
xBA
27
.237
.286
.424
.194
.299
19.6%
6.4%
13.2%
11
0
134
1.89
—
2025125435.212.272.330.118.27820.2%7.4%12.8%1131641.31—
2024135491.220.268.336.116.28218.3%5.3%13.0%1312061.53—
2023152502.258.319.437.179.32719.1%8.0%11.1%1833422.25—
2022130450.227.299.399.172.29319.3%9.1%10.2%1622331.79—
202182285.196.242.358.162.28720.4%5.3%15.1%1031211.48—
20201341.211.268.211.000.3007.3%7.3%0.0%00181.38—
xSLG
35
.388
Quality of Contact
Avg EV
26
87.5
Median EV
1
83.4
90th % EV
2
98.2
Barrel %
40
7.2
Hard-Hit %
15
32.0
Sweet-Spot %
40
35.1
Bat Speed
Avg
28
68.8
Median
15
68.9
90th %
24
74.4
Plate Discipline
Chase %
22
33.9
Whiff %
41
22.7
K %
59
19.6
BB %
17
6.4
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+
91
≈ 17th pctl
Chase cost
-2.7r
25 swings @ bad pitch
Passive cost
-1.0r
19 takes @ hittable pitch
Swing rate
42.9%
126 pitches seen
Runs per 100
-2.92
lg avg -2.53
Count
View
12221+83%63+14%7+50%63143-22%9-57%745315-14%73-33%6+17%6221+14%7411111CATCHER'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: 126