Mithrandir Metrics
Player Kansas City Royals Refreshed Jun 1 06:00 AM ET
Player profile / Kansas City Royals

Michael Wacha

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

Cards
13
Modules
1
Live Δ
yes
Club Kansas City Royals Position P 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
ERA preseason4.49
ERA current pace2.69
ERA rolling p503.43
Observed weight59%
ERA
2.52 2.95 3.43 3.91 4.35
FIP
3.60 3.87 4.18 4.49 4.77
K%
17.9% 19.0% 20.3% 21.6% 22.7%
BB%
6.8% 7.5% 8.2% 8.9% 9.6%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%8.8%
49 -29 vs proj
Barrel allowed8.5%
38
Fastball velo92.9
26
Hard-hit allowed41.0%
40
K%21.7%
47 +28 vs proj
Whiff%21.2%
33
xwOBA allowed0.314
49 +26 vs proj
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
Mithrandir Stuff+103
57
Rolling form chart

xwOBA allowed 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 allowed Wacha, Michael · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.3152026-05-19: 0.3152026-05-21: 0.3152026-05-23: 0.3122026-05-24: 0.3122026-05-25: 0.3122026-05-26: 0.3152026-05-28: 0.3152026-05-29: 0.3152026-05-30: 0.3152026-05-31: 0.3152026-06-01: 0.314 2026-05-17 2026-06-01 xwOBA allowed MITHRANDIR · CHARTS
Optimization map

Arsenal optimization map

Pitch-shape context from this pitcher’s current arsenal snapshot. Hover a pitch to inspect usage, movement, and bat-missing context.

6Pitches 2026Season 28%Top usage
ride armside gloveside +Arsenal gap +Shape contrast
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 Pitch Zone Profile Wacha, Michael · Aggregate zone metrics; not pitch-by-pitch locations Edge: 39%39%Zone: 48%48%Whiff: 21%21%Called strike: 16%16%First pitch strike: 48%48%Hard hit allowed: 41%41% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Pitch arsenal

Usage mix, movement map, and Stuff+ composition

2026 pitch-level arsenal aggregates; current season takes over after 100 tracked pitches across at least 2 pitch types. Descriptive pitch-type Stuff+ composition. Not a promoted predictive metric.

2026
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Wacha, Michael · 2026 arsenal snapshot 4-Seam Fastball: 28.4%Changeup: 22.2%Sinker: 15.6%Cutter: 15.5%Curveball: 9.1%Slider: 9.1% MIX FF 28%CH 22%SI 16%FC 15%CU 9%SL 9% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Wacha, Michael · 2026 arsenal snapshot FF: HB -0.2, IVB 1.1FFCH: HB -0.7, IVB 2.8CHSI: HB 0.5, IVB 1.3SIFC: HB 0.0, IVB 2.0FCCU: HB 0.3, IVB 5.0CUSL: HB -0.3, IVB 2.8SL horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 29.1% 319 103 qualified
CH 22.8% 250 107 qualified
FC 15.3% 168 102 limited sample
SI 14.7% 161 97 limited sample
CB 9.7% 106 102 limited sample
SL 8.4% 92 104 limited sample
Method note

Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.

Reference layer

Current snapshot

Age34
Height6' 6"
Weight215 lb
Debut2013-05-30
Live layer

Delta / regression

ERA Δ-1.67
K% Δ+0.039

positive regression

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching132026-05-254-Seam Fastball played up through CH/CU tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202617.8% K | 4.36 ERAProjection
2026-05-20 vs BOS1 ER / 8 K6.0 IP
2026-04-17 @ NYY2 ER / 6 K6.0 IP
2026-04-11 vs CWS0 ER / 7 K8.0 IP
2026-04-06 @ CLE1 ER / 3 K7.0 IP