Mithrandir Metrics
Player Los Angeles Angels Refreshed Sep 3 06:00 AM ET
Player profile / Los Angeles Angels

Reid Detmers

P · Bats/Throws L/L · 6' 2", 210 lb · Age 27

Cards
26
Modules
1
Live Δ
yes
Club Los Angeles Angels Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024496.701717087.11091.56
2025533.96610363.2801.30
2026483.4428280162.01821.06
6 Seasons25394.421641033611.16801.28
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.

2026-09-03
80
Pitching
percentile
Pitching9 metrics
68
Arsenal6 metrics
62
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-03
ERA preseason4.58
ERA current pace3.44
ERA rolling p503.74
Observed weight73%
ERA
1.70 2.67 3.74 4.82 5.78
FIP
2.42 2.86 3.35 3.84 4.29
K%
25.4% 26.6% 27.9% 29.2% 30.4%
BB%
6.3% 7.0% 7.7% 8.4% 9.0%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-03
Pitching · percentile strip
WHIP1.08
87
ERA3.44
69
BB%7.1%
76 +25 vs proj
K%27.8%
85
xwOBA allowed0.280
84 +24 vs proj
Barrel allowed7.5%
50
Fastball velo94.0
42
Hard-hit allowed38.3%
51
Whiff%25.5%
70
Mithrandir+

Stuff+ and arsenal context

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

2026-09-03
Fastball Stuff+104
61
Mithrandir Stuff+105
75
Slider Stuff+106
85
Changeup Stuff+103
56
Curveball Stuff+106
95
Sinker Stuff+86
1
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 Detmers, Reid · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.280 2026-08-23: 0.2832026-08-24: 0.2832026-08-25: 0.2842026-08-26: 0.2842026-08-27: 0.2842026-08-28: 0.2842026-08-29: 0.2842026-08-30: 0.2842026-08-31: 0.2842026-09-01: 0.2842026-09-02: 0.2842026-09-03: 0.280 2026-08-23 2026-09-03 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 45%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 Detmers, Reid · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 50%50%Whiff: 26%26%Called strike: 17%17%First pitch strike: 53%53%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 Detmers, Reid · 2026 arsenal snapshot 4-Seam Fastball: 45.2%Slider: 32.9%Curveball: 11.0%Changeup: 9.6%Sinker: 1.2%Pitch Out: 0.0% FF45% · 94 mphprimary pitch FF 45%SL 33%CU 11%CH 10%SI 1%PO 0% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Detmers, Reid · 2026 arsenal snapshot 18″36″54″72″ 4-Seam Fastball: 45% usage, 4″ horizontal break, 14″ drop, 94.1 mphFF94 mphSlider: 33% usage, 1″ horizontal break, 41″ drop, 86.1 mphSL86 mphCurveball: 11% usage, 6″ horizontal break, 68″ drop, 72.3 mphCU72 mphChangeup: 10% usage, 11″ horizontal break, 28″ drop, 83.8 mphCH84 mphSinker: 1% usage, 5″ horizontal break, 18″ drop, 93.5 mphSI94 mphPitch Out: 0% usage, 13″ horizontal break, 22″ drop, 87.3 mphPO87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 43.7% 656 104 qualified
SL 32.7% 491 106 qualified
CH 11.5% 173 103 limited sample
CB 10.2% 153 106 limited sample
SI 1.9% 29 86 limited sample
Method note

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

Reference layer

Current snapshot

Age27
Height6' 2"
Weight210 lb
Debut2021-08-01
Live layer

Delta / regression

ERA Δ-0.92
K% Δ-0.002

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.3σ gap
wOBA-against (actual)0.287
xwOBA-against (deserved)0.280

Detmers’s wOBA-against sits at 0.287, but the quality of contact underneath says it should be 0.280 — a gap of 0.008, 0.3 standard deviations from the MLB norm over 164 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
Pitching262026-09-02Slider played up through SL/FF tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202628.1% K | 4.36 ERAProjection
2026-08-15 vs KC0 ER / 11 K8.0 IP
2026-04-20 vs TOR4 ER / 5 K6.0 IP
2026-04-14 @ NYY1 ER / 9 K7.0 IP
2026-04-08 vs ATL5 ER / 4 K4.1 IP
2026-04-03 vs SEA0 ER / 4 K6.2 IP