Mithrandir Metrics
Player Toronto Blue Jays Refreshed Sep 28 06:00 AM ET
Player profile / Toronto Blue Jays

John Klein

P · Bats/Throws R/R · 6' 5", 225 lb · Age 24

Cards
0
Modules
0
Live Δ
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Club Toronto Blue Jays Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2026012.164008.171.32
1 Seasons012.164008.171.32
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.

2026-09-28
40
Pitching
percentile
Arsenal5 metrics
40
Rolling projection

Preseason / current pace / Bayesian update

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

Pending

Rolling player projection appears after current-season Statcast and projection joins refresh.

Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-28
Mithrandir+

Stuff+ and arsenal context

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

2026-09-28
Changeup Stuff+105
73
Curveball Stuff+100
22
Cutter Stuff+94
4
Fastball Stuff+104
63
Mithrandir Stuff+101
38
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.

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 46%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 Klein, John · Aggregate zone metrics; not pitch-by-pitch locations Edge: 43%43%Zone: 52%52%Whiff: 14%14%Called strike: 18%18%First pitch strike: 49%49%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 Klein, John · 2026 arsenal snapshot 4-Seam Fastball: 45.9%Changeup: 27.0%Curveball: 10.8%Cutter: 9.5%Sweeper: 6.8% FF46% · 95 mphprimary pitch FF 46%CH 27%CU 11%FC 9%ST 7% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Klein, John · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 46% usage, 1″ horizontal break, 14″ drop, 94.8 mphFF95 mphChangeup: 27% usage, 7″ horizontal break, 34″ drop, 86.6 mphCH87 mphCurveball: 11% usage, 6″ horizontal break, 54″ drop, 80.4 mphCU80 mphCutter: 9% usage, 3″ horizontal break, 31″ drop, 86.6 mphFC87 mphSweeper: 7% usage, 7″ horizontal break, 34″ drop, 82.3 mphST82 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 43.1% 47 104 limited sample
CH 25.7% 28 105 limited sample
CB 14.7% 16 100 limited sample
FC 9.2% 10 94 limited sample
SL 7.3% 8 98 limited sample
Method note

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

Reference layer

Current snapshot

Age24
Height6' 5"
Weight225 lb
Debut2026-05-02
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

No projection links or recent game log rows are available yet.