Mithrandir Metrics
Player Athletics Refreshed Jun 1 06:00 AM ET
Player profile / Athletics

Jonah Heim

C profile with live context, projection links, and Mithrandir card history when available.

Cards
0
Modules
0
Live Δ
yes
Club Athletics Position C Roster Active Status Healthy / active roster
Rolling projection

Preseason / current pace / Bayesian update

Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.

2026-06-01
xwOBA preseason0.299
xwOBA current pace0.283
xwOBA rolling p500.294
Observed weight29%
xwOBA
0.262 0.277 0.294 0.311 0.327
wOBA
0.256 0.286 0.319 0.352 0.382
ISO
0.117 0.137 0.159 0.181 0.201
K%
16.1% 17.6% 19.4% 21.2% 22.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Hitting · percentile strip
BB%8.8%
46 +21 vs proj
Barrel%3.3%
26 -15 vs proj
Bat speed68.2
31
Exit velocity85.3
17
Hard-hit%25.4%
7 -30 vs proj
K%16.5%
81 +20 vs proj
xBA0.270
12
xSLG0.430
24
xwOBA0.283
26
Defense · percentile strip
Blocking Runs0.2 · C
55
Catcher Throwing-1.0 · C
14
Framing Runs0.3 · C
53
Pop Time2.0 · C
32
Baserunning · percentile strip
Sprint Speed25.3 · C
9
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; missing coverage is shown explicitly.

2026-06-01
Avoids Bad ChasesST 65.5% · rebadged research
49
Avoids Bad TakesHPT 27.5% · rebadged research
27
Correct Decisions64.2% · rebadged research
31
Resists Breaking - horizontalwOBA 0.287 · borderline
40
Resists Breaking - verticalwOBA 0.296 · insufficient sample
11
Resists ChangeupwOBA 0.267 · validated thin sample
77
Resists Cutters + splitterswOBA 0.301 · insufficient sample
98
Resists FastballwOBA 0.345 · validated
40
Resists SinkerwOBA 0.360 · validated
39
SEAGER+ Plate Discipline99
39
Rolling form chart

xwOBA snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

12 snapshots
Mithrandir Metrics ROLLING XWOBA LINE Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Rolling xwOBA Heim, Jonah · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 2026-05-17: 0.2392026-05-19: 0.2472026-05-21: 0.2502026-05-23: 0.2502026-05-24: 0.2502026-05-25: 0.2612026-05-26: 0.2612026-05-28: 0.2672026-05-29: 0.2672026-05-30: 0.2672026-05-31: 0.2672026-06-01: 0.283 2026-05-17 2026-06-01 xwOBA MITHRANDIR · CHARTS
Zone profile

Aggregate zone heatmap

Aggregate zone metrics from seasonal Statcast leaderboards.

Mithrandir Metrics ZONE HEATMAP Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Swing Zone Profile Heim, Jonah · Aggregate zone metrics; not pitch-by-pitch locations Zone: 45%45%Chase: 34%34%Whiff: 20%20%Zone contact: 85%85%Contact: 80%80%Hard hit: 25%25% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Reference layer

Current snapshot

Age30
Height6' 4"
Weight220 lb
Debut2020-08-25
Live layer

Delta / regression

xwOBA Δ-0.009
wOBA Δ+0.028
Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

Hitter Projections 20260.291 xwOBA | 13 HRProjection
2026-04-11 vs CLE0 HR | 0 RBI / 6 Ch | 1 E1-4
2026-04-08 @ LAA0 HR | 1 RBI / 10 Ch | 0 E1-4 | 2B, K, RBI
2026-04-07 @ LAA0 HR | 1 RBI / 14 Ch | 0 E1-4 | RBI
2026-04-03 @ AZ0 HR | 0 RBI / 5 Ch | 0 E0-2
2026-03-30 vs ATH0 HR | 0 RBI / 7 Ch | 0 E0-3 | BB, 2 K