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

Martín Pérez

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

Cards
8
Modules
1
Live Δ
yes
Club Atlanta Braves 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 preseason4.43
ERA current pace2.70
ERA rolling p503.60
Observed weight48%
ERA
2.36 2.95 3.60 4.25 4.83
FIP
3.57 3.94 4.35 4.76 5.13
K%
15.1% 16.5% 18.0% 19.5% 20.9%
BB%
6.2% 7.0% 8.0% 8.9% 9.7%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%8.5%
54
Barrel allowed7.6%
51 +15 vs proj
Fastball velo90.0
5
Hard-hit allowed41.1%
39
K%19.2%
26
Whiff%18.5%
16
xwOBA allowed0.327
40 +21 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+98
22
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 Pérez, Martín · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.3182026-05-19: 0.3182026-05-21: 0.3102026-05-23: 0.3102026-05-24: 0.3102026-05-25: 0.3172026-05-26: 0.3172026-05-28: 0.3172026-05-29: 0.3172026-05-30: 0.3172026-05-31: 0.3172026-06-01: 0.327 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.

5Pitches 2026Season 32%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 Pérez, Martín · Aggregate zone metrics; not pitch-by-pitch locations Edge: 41%41%Zone: 47%47%Whiff: 18%18%Called strike: 19%19%First pitch strike: 50%50%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 Pérez, Martín · 2026 arsenal snapshot Changeup: 32.1%Sinker: 29.7%Cutter: 21.1%Curveball: 10.2%4-Seam Fastball: 6.9% MIX CH 32%SI 30%FC 21%CU 10%FF 7% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Pérez, Martín · 2026 arsenal snapshot CH: HB -0.6, IVB 2.6CHSI: HB 0.0, IVB 2.1SIFC: HB 0.1, IVB 2.2FCCU: HB 0.2, IVB 4.1CUFF: HB -0.7, IVB 1.5FF horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CH 32.7% 235 99 qualified
SI 29.1% 209 97 qualified
FC 20.6% 148 102 limited sample
CB 10.8% 78 104 limited sample
FB 6.8% 49 91 limited sample
Method note

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

Reference layer

Current snapshot

Age35
Height6' 0"
Weight210 lb
Debut2012-06-27
Live layer

Delta / regression

ERA Δ-1.70
K% Δ+0.026

positive regression

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching82026-05-24Changeup played up through CH/CU tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202616.6% K | 4.40 ERAProjection
2026-04-17 @ PHI0 ER / 4 K6.0 IP
2026-04-11 vs CLE1 ER / 2 K5.0 IP
2026-04-05 @ AZ4 ER / 1 K5.0 IP
2026-03-31 vs ATH0 ER / 3 K4.1 IP