Mithrandir Metrics
Player Houston Astros Refreshed Jun 15 06:00 AM ET
Player profile / Houston Astros

Peter Lambert

P · Bats/Throws R/R · 6' 2", 208 lb · Age 29

Cards
9
Modules
1
Live Δ
yes
Club Houston Astros Position P Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2023375.362511087.1711.39
2024255.72283061.1501.66
2026543.471010057.0531.21
5 Seasons13235.7584450300.22341.53
At a glance

Season percentile report

The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.

2026-06-15
51
Pitching
percentile
Pitching9 metrics
47
Arsenal6 metrics
45
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-15
ERA preseason3.95
ERA current pace3.47
ERA rolling p503.70
Observed weight51%
ERA
2.65 3.15 3.70 4.26 4.76
FIP
2.44 3.13 3.89 4.65 5.34
K%
18.6% 19.9% 21.4% 22.8% 24.1%
BB%
7.0% 7.9% 8.9% 9.9% 10.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-15
Pitching · percentile strip
WHIP1.21
65
ERA3.47
59
BB%10.3%
32 -32 vs proj
K%21.4%
43
xwOBA allowed0.307
57
Barrel allowed8.3%
41
Fastball velo94.1
47
Hard-hit allowed41.7%
36
Whiff%21.9%
42
Mithrandir+

Stuff+ and arsenal context

How nasty this pitcher's stuff grades in our pitch-level model. Missing coverage is shown explicitly.

2026-06-15
Fastball Stuff+105
69
Mithrandir Stuff+101
41
Slider Stuff+104
70
Changeup Stuff+94
8
Cutter Stuff+103
64
Sinker Stuff+97
18
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 0.307 2026-06-04: 0.3102026-06-05: 0.3102026-06-06: 0.3142026-06-07: 0.3142026-06-08: 0.3142026-06-09: 0.3142026-06-10: 0.3142026-06-11: 0.3142026-06-12: 0.3072026-06-13: 0.3072026-06-14: 0.3072026-06-15: 0.307 2026-06-04 2026-06-15 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: 37%37%Zone: 47%47%Whiff: 22%22%Called strike: 15%15%First pitch strike: 50%50%Hard hit allowed: 42%42% 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.

Watch the pitches in 3D →

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: 21.5%Slider: 19.5%Sinker: 10.3%Cutter: 9.9%Slurve: 9.6% FF29% · 94 mphprimary pitch FF 29%CH 21%SL 19%SI 10%FC 10%SV 10% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Lambert, Peter · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 29% usage, 2″ horizontal break, 13″ drop, 94.3 mphFF94 mphChangeup: 21% usage, 6″ horizontal break, 27″ drop, 87.7 mphCH88 mphSlider: 19% usage, 0″ horizontal break, 36″ drop, 85.9 mphSL86 mphSinker: 10% usage, 13″ horizontal break, 18″ drop, 93.6 mphSI94 mphCutter: 10% usage, 0″ horizontal break, 19″ drop, 92.2 mphFC92 mphSlurve: 10% usage, 3″ horizontal break, 50″ drop, 81.0 mphSV81 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 29.7% 228 105 qualified
SL 27.6% 212 104 qualified
CH 22.8% 175 94 limited sample
FC 10.8% 83 103 limited sample
SI 9.0% 69 97 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-0.90
K% Δ+0.014

negative regression

Regression watch

Running hot. Expect some cooling.

-0.0σ gap
wOBA-against (actual)0.306
xwOBA-against (deserved)0.307

Lambert’s wOBA-against sits at 0.306, but the quality of contact underneath says it should be 0.307 — a gap of 0.001, -0.0 standard deviations from the MLB norm over 60 IP. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.

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