Mithrandir Metrics
Player Houston Astros Refreshed Jul 18 06:00 AM ET
Player profile / Houston Astros

Peter Lambert

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

Cards
14
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
2026853.031616092.0911.11
5 Seasons16245.3990510335.22721.47
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.

2026-07-18
63
Pitching
percentile
Pitching9 metrics
56
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.

2026-07-18
ERA preseason3.95
ERA current pace3.14
ERA rolling p503.46
Observed weight61%
ERA
2.38 2.89 3.46 4.02 4.53
FIP
2.59 3.29 4.06 4.84 5.54
K%
19.4% 20.6% 21.9% 23.2% 24.3%
BB%
6.9% 7.7% 8.5% 9.4% 10.2%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-07-18
Pitching · percentile strip
WHIP1.12
79
ERA3.14
73
BB%9.2%
42 -22 vs proj
K%22.3%
48 +15 vs proj
xwOBA allowed0.287
75
Barrel allowed7.7%
49
Fastball velo93.9
40
Hard-hit allowed37.8%
58
Whiff%21.7%
40
Mithrandir+

Stuff+ and arsenal context

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

2026-07-18
Fastball Stuff+105
70
Mithrandir Stuff+101
42
Slider Stuff+105
70
Changeup Stuff+94
9
Cutter Stuff+103
63
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 0.287 2026-07-07: 0.2932026-07-08: 0.2932026-07-09: 0.2932026-07-10: 0.2932026-07-11: 0.2932026-07-12: 0.2932026-07-13: 0.2872026-07-14: 0.2872026-07-15: 0.2872026-07-16: 0.2872026-07-17: 0.2872026-07-18: 0.287 2026-07-07 2026-07-18 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.

8Pitches 2026Season 31%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: 22%22%Called strike: 15%15%First pitch strike: 51%51%Hard hit allowed: 38%38% 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: 31.1%Changeup: 21.8%Slider: 16.4%Cutter: 9.9%Sinker: 9.5%Sweeper: 7.8% FF31% · 94 mphprimary pitch FF 31%CH 22%SL 16%FC 10%SI 10%ST 8% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Lambert, Peter · 2026 arsenal snapshot 18″36″54″72″ 4-Seam Fastball: 31% usage, 2″ horizontal break, 14″ drop, 94.0 mphFF94 mphChangeup: 22% usage, 6″ horizontal break, 27″ drop, 87.2 mphCH87 mphSlider: 16% usage, 0″ horizontal break, 36″ drop, 85.7 mphSL86 mphCutter: 10% usage, 0″ horizontal break, 20″ drop, 91.6 mphFC92 mphSinker: 10% usage, 13″ horizontal break, 19″ drop, 93.3 mphSI93 mphSweeper: 8% usage, 4″ horizontal break, 44″ drop, 82.3 mphST82 mphSlurve: 3% usage, 6″ horizontal break, 56″ drop, 79.5 mphSV80 mphCurveball: 1% usage, 8″ horizontal break, 64″ drop, 77.9 mphCU78 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% 212 105 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-1.21
K% Δ+0.023

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.3σ gap
wOBA-against (actual)0.294
xwOBA-against (deserved)0.287

Lambert’s wOBA-against sits at 0.294, but the quality of contact underneath says it should be 0.287 — a gap of 0.007, 0.3 standard deviations from the MLB norm over 89 IP. The results have been worse than the process deserves; as the sample grows, expect the numbers to climb back toward the underlying level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching142026-07-17Four-Seam Fastball played up through FF/SV tunnel quality
Projection links / recent games

Available detail

2026-04-17 vs STL4 ER / 8 K5.0 IP