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

Peter Lambert

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

Cards
9
Modules
1
Live Δ
yes
Club Houston Astros 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 preseason3.95
ERA current pace3.79
ERA rolling p503.87
Observed weight46%
ERA
2.82 3.32 3.87 4.43 4.93
FIP
2.22 2.91 3.67 4.43 5.12
K%
18.5% 19.9% 21.4% 23.0% 24.4%
BB%
7.0% 7.9% 9.0% 10.0% 11.0%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%10.8%
25 -38 vs proj
Barrel allowed6.7%
65 +26 vs proj
Fastball velo94.3
49
Hard-hit allowed42.5%
31
K%21.6%
45
Whiff%23.3%
52 +15 vs proj
xwOBA allowed0.310
54
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+101
43
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 Lambert, Peter · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.2962026-05-19: 0.2952026-05-21: 0.2952026-05-23: 0.2952026-05-24: 0.2952026-05-25: 0.3082026-05-26: 0.3082026-05-28: 0.3082026-05-29: 0.3082026-05-30: 0.3082026-05-31: 0.3082026-06-01: 0.310 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 29%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 Lambert, Peter · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 48%48%Whiff: 23%23%Called strike: 15%15%First pitch strike: 49%49%Hard hit allowed: 43%43% 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 Lambert, Peter · 2026 arsenal snapshot 4-Seam Fastball: 29.3%Changeup: 22.2%Slider: 19.6%Slurve: 10.8%Cutter: 10.3%Sinker: 8.0% MIX FF 29%CH 22%SL 20%SV 11%FC 10%SI 8% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Lambert, Peter · 2026 arsenal snapshot FF: HB -0.2, IVB 1.1FFCH: HB -0.7, IVB 2.2CHSL: HB 0.0, IVB 3.0SLSV: HB 0.2, IVB 4.1SVFC: HB -0.0, IVB 1.6FCSI: HB 1.1, IVB 1.5SI horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 29.7% 200 105 qualified
SL 28.8% 194 105 limited sample
CH 22.9% 154 93 limited sample
FC 11.1% 75 105 limited sample
SI 7.4% 50 95 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"
Weight208 lb
Debut2019-06-06
Live layer

Delta / regression

ERA Δ-0.58
K% Δ+0.016

negative regression

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching92026-05-244-Seam Fastball played up through FF/SL tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202620.0% K | 4.37 ERAProjection
2026-04-17 vs STL4 ER / 8 K5.0 IP