Mithrandir Metrics
Pitcher projection 2026 Refreshed Sep 5 06:00 AM ET
Pitcher projection / ATL · 2026

Kerr, Ray

Run-prevention profile built on workable command

Primary
24.3% K%
Range
18.9% to 29.5%
Live Δ
--
Team ATL Archetype Volatile contact Age 32 Status Healthy / active roster
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.

2026-09-05
49
Pitching
percentile
Arsenal4 metrics
49
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-05
ERA preseason3.84
ERA current pace2.70
ERA rolling p503.72
Observed weight10%
ERA
2.15 2.90 3.72 4.55 5.29
FIP
2.93 3.18 3.46 3.75 4.00
K%
18.2% 20.5% 23.0% 25.6% 27.9%
BB%
3.4% 4.7% 6.2% 7.7% 9.0%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-09-05
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; Arsenal Decomposition remains descriptive support under Stuff+.

2026-09-05
Curveball Stuff+103
58
Fastball Stuff+95
11
Mithrandir Stuff+101
34
Sinker Stuff+108
91
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.

4Pitches 2026Season 36%Top usage
ride armside gloveside +Arsenal gap +Shape contrast
Rolling form chart

xwOBA allowed snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

0 snapshots
No chart yet

No Live State xwOBA snapshots are available for this player.

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 Kerr, Ray · Aggregate zone metrics; not pitch-by-pitch locations Edge: 31%31%Zone: 49%49%Whiff: 19%19%Called strike: 18%18%First pitch strike: 52%52%Hard hit allowed: 37%37% 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 Kerr, Ray · 2026 arsenal snapshot Curveball: 36.5%4-Seam Fastball: 36.5%Sinker: 21.2%Slow Curve: 5.9% CU36% · 81 mphprimary pitch CU 36%FF 36%SI 21%CS 6% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Kerr, Ray · 2026 arsenal snapshot 15″30″45″60″ Curveball: 36% usage, 1″ horizontal break, 45″ drop, 81.3 mphCU81 mph4-Seam Fastball: 36% usage, 5″ horizontal break, 15″ drop, 95.5 mphFF96 mphSinker: 21% usage, 15″ horizontal break, 20″ drop, 94.9 mphSI95 mphSlow Curve: 6% usage, 5″ horizontal break, 50″ drop, 80.4 mphCS80 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CB 45.6% 31 103 limited sample
FB 35.3% 24 95 limited sample
SI 19.1% 13 108 limited sample
Method note

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

Model read

Projection notes

1
templated note
Plays better against lefties right now (0.227 vs 0.252 xwOBA allowed split).
Live context

Current-season signal

No Live State delta is available for this player yet.

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings63.8----
Batters Faced288----
K%24.3%18.9% to 29.5%+/- 5.3%
BB%6.7%3.8% to 10.0%+/- 3.1%
Whiff%25.7%22.6% to 31.6%+/- 4.5%
HR/91.660.80 to 2.18+/- 0.69
xwOBA Against0.3040.238 to 0.331+/- 0.047
Barrel% Allowed8.6%5.7% to 12.1%+/- 3.2%
ERA3.932.41 to 5.89+/- 1.74
FIP3.442.34 to 3.52+/- 0.59
WHIP1.2941.024 to 1.581+/- 0.278
Platoon / Shape
vs LHH

97 career BF

xwOBA0.227
K%23.8%
BB%4.9%
Barrel7.7%
vs RHH

174 career BF

xwOBA0.252
K%21.2%
BB%5.0%
Barrel9.3%