Mithrandir Metrics
Player Texas Rangers Refreshed Sep 27 06:00 AM ET
Player profile / Texas Rangers

Trevor Williams

P · Bats/Throws R/R · 6' 3", 231 lb · Age 34

Cards
1
Modules
1
Live Δ
yes
Club Texas Rangers Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024612.031313066.2591.04
20253106.211717082.2651.54
2026203.14151028.2341.19
11 Seasons55654.4223417911037.28591.37
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.

2026-09-27
73
Pitching
percentile
Pitching9 metrics
62
Arsenal5 metrics
26
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-27
ERA preseason4.57
ERA current pace3.14
ERA rolling p504.09
Observed weight33%
ERA
2.82 3.43 4.09 4.76 5.36
FIP
3.10 3.54 4.02 4.50 4.93
K%
17.7% 19.5% 21.5% 23.5% 25.3%
BB%
5.0% 5.8% 6.8% 7.7% 8.6%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Pitching · percentile strip
WHIP1.19
75
ERA3.14
79
BB%8.3%
57 -31 vs proj
K%28.3%
88 +73 vs proj
xwOBA allowed0.301
67 +33 vs proj
Barrel allowed6.8%
62 +35 vs proj
Fastball velo89.4
3
Hard-hit allowed36.5%
65
Whiff%24.7%
65 +54 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-09-27
Changeup Stuff+100
38
Fastball Stuff+99
30
Mithrandir Stuff+98
17
Sinker Stuff+84
1
Slider 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 Williams, Trevor · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.301 2026-09-13: 0.3082026-09-14: 0.3082026-09-18: 0.3082026-09-19: 0.2952026-09-20: 0.2952026-09-21: 0.2952026-09-22: 0.2952026-09-23: 0.2952026-09-24: 0.3102026-09-25: 0.3102026-09-26: 0.3012026-09-27: 0.301 2026-09-13 2026-09-27 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 39%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 Williams, Trevor · Aggregate zone metrics; not pitch-by-pitch locations Edge: 39%39%Zone: 43%43%Whiff: 25%25%Called strike: 14%14%First pitch strike: 51%51%Hard hit allowed: 36%36% 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 Williams, Trevor · 2026 arsenal snapshot 4-Seam Fastball: 39.3%Sweeper: 26.5%Sinker: 16.1%Changeup: 11.5%Slider: 6.6% FF39% · 90 mphprimary pitch FF 39%ST 26%SI 16%CH 11%SL 7% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Williams, Trevor · 2026 arsenal snapshot 12″24″36″48″ 4-Seam Fastball: 39% usage, 1″ horizontal break, 23″ drop, 89.8 mphFF90 mphSweeper: 26% usage, 3″ horizontal break, 37″ drop, 78.4 mphST78 mphSinker: 16% usage, 6″ horizontal break, 32″ drop, 88.4 mphSI88 mphChangeup: 11% usage, 9″ horizontal break, 41″ drop, 81.3 mphCH81 mphSlider: 7% usage, 2″ horizontal break, 36″ drop, 82.7 mphSL83 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 37.1% 124 99 limited sample
SL 32.3% 108 101 limited sample
SI 17.7% 59 84 limited sample
CH 12.9% 43 100 limited sample
Method note

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

Reference layer

Current snapshot

Age34
Height6' 3"
Weight231 lb
Debut2016-09-07
Live layer

Delta / regression

ERA Δ-1.75
K% Δ+0.114
Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching12026-09-04Stuff and strike quality carried the outing
Projection links / recent games

Available detail

Pitcher Projections 202616.9% K | 4.89 ERAProjection