Mithrandir Metrics
Player San Diego Padres Refreshed Jun 2 06:00 AM ET
Player profile / San Diego Padres

Matt Waldron

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

Cards
4
Modules
1
Live Δ
yes
Club San Diego Padres Position P Roster Injured 15-Day Status IL-15
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-02
ERA preseason4.30
ERA current pace8.49
ERA rolling p505.80
Observed weight36%
ERA
4.27 4.99 5.80 6.60 7.33
FIP
3.39 3.83 4.33 4.83 5.27
K%
17.1% 18.9% 20.9% 22.9% 24.7%
BB%
5.3% 6.3% 7.3% 8.3% 9.3%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-02
Pitching · percentile strip
BB%7.5%
69
Barrel allowed7.4%
56
Fastball velo92.0
18
Hard-hit allowed39.4%
49
K%20.9%
39
Whiff%16.2%
7 -19 vs proj
xwOBA allowed0.306
58 +17 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-06-02
Mithrandir Stuff+104
67
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 Waldron, Matt · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 2026-05-19: 0.3072026-05-21: 0.3072026-05-23: 0.3072026-05-24: 0.3072026-05-25: 0.3062026-05-26: 0.3062026-05-28: 0.3062026-05-29: 0.3062026-05-30: 0.3062026-05-31: 0.3062026-06-01: 0.3062026-06-02: 0.306 2026-05-19 2026-06-02 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.

5Pitches 2026Season 30%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 Waldron, Matt · Aggregate zone metrics; not pitch-by-pitch locations Edge: 39%39%Zone: 50%50%Whiff: 16%16%Called strike: 17%17%First pitch strike: 50%50%Hard hit allowed: 39%39% 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 Waldron, Matt · 2026 arsenal snapshot Knuckleball: 29.6%4-Seam Fastball: 20.0%Sinker: 18.0%Cutter: 17.8%Sweeper: 14.7% MIX KN 30%FF 20%SI 18%FC 18%ST 15% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Waldron, Matt · 2026 arsenal snapshot KN: HB 0.0, IVB 3.7KNFF: HB -0.1, IVB 1.5FFSI: HB 0.3, IVB 1.9SIFC: HB 0.0, IVB 2.2FCST: HB 0.2, IVB 3.0ST horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 27.8% 78 104 limited sample
FC 27.0% 76 102 limited sample
SI 23.8% 67 108 limited sample
SL 21.4% 60 100 limited sample
Method note

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

Reference layer

Current snapshot

Age29
Height6' 2"
Weight185 lb
Debut2023-06-24
Live layer

Delta / regression

ERA Δ+4.17
K% Δ-0.002
Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching42026-04-29Knuckleball played up through SI/ST tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202621.1% K | 4.32 ERAProjection
2026-04-17 @ LAA6 ER / 4 K3.2 IP