Mithrandir Metrics
Player Detroit Tigers Refreshed Jun 1 06:00 AM ET
Player profile / Detroit Tigers

Tyler Holton

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

Cards
2
Modules
1
Live Δ
yes
Club Detroit Tigers 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 preseason3.61
ERA current pace4.56
ERA rolling p503.92
Observed weight33%
ERA
2.92 3.39 3.92 4.45 4.93
FIP
3.74 4.00 4.29 4.58 4.85
K%
16.8% 18.5% 20.4% 22.4% 24.1%
BB%
4.4% 5.3% 6.2% 7.1% 7.9%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%6.7%
77
Barrel allowed5.9%
74 +23 vs proj
Fastball velo91.0
7
Hard-hit allowed45.9%
13
K%20.2%
34
Whiff%23.4%
53
xwOBA allowed0.314
49
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+103
58
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 Holton, Tyler · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.3452026-05-19: 0.3452026-05-21: 0.3302026-05-23: 0.3272026-05-24: 0.3272026-05-25: 0.3192026-05-26: 0.3192026-05-28: 0.3152026-05-29: 0.3142026-05-30: 0.3142026-05-31: 0.3142026-06-01: 0.314 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 33%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 Holton, Tyler · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 48%48%Whiff: 23%23%Called strike: 16%16%First pitch strike: 51%51%Hard hit allowed: 46%46% 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 Holton, Tyler · 2026 arsenal snapshot Cutter: 32.7%Sinker: 18.4%Sweeper: 17.1%Changeup: 15.6%4-Seam Fastball: 11.2%Curveball: 5.0% MIX FC 33%SI 18%ST 17%CH 16%FF 11%CU 5% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Holton, Tyler · 2026 arsenal snapshot FC: HB 0.4, IVB 2.5FCSI: HB 1.3, IVB 2.0SIST: HB -1.5, IVB 3.7STCH: HB -1.0, IVB 3.1CHFF: HB -0.4, IVB 1.4FFCU: HB 1.0, IVB 4.9CU horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FC 33.3% 145 105 limited sample
SI 18.6% 81 105 limited sample
SL 17.7% 77 101 limited sample
CH 14.9% 65 101 limited sample
FB 11.0% 48 95 limited sample
CB 4.6% 20 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"
Weight200 lb
Debut2022-04-28
Live layer

Delta / regression

ERA Δ+0.90
K% Δ+0.000
Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching22026-05-04Stuff and strike quality carried the outing
Projection links / recent games

Available detail

Pitcher Projections 202620.2% K | 3.66 ERAProjection
2026-05-20 vs CLE1 ER / 1 K1.0 IP
2026-04-20 @ BOS3 ER / 1 K0.2 IP
2026-04-15 vs KC0 ER / 0 K0.2 IP
2026-04-09 @ MIN0 ER / 2 K1.1 IP
2026-04-07 @ MIN0 ER / 1 K1.1 IP