Mithrandir Metrics
Player Worcester Red Sox Refreshed Jun 14 06:00 AM ET
Player profile / Worcester Red Sox

Jack Anderson

P · Bats/Throws R/R · 6' 3", 197 lb · Age 26

Cards
0
Modules
0
Live Δ
--
Club Worcester Red Sox Position P Roster Reassigned to Minors Status Out / inactive
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2026003.383008.061.25
1 Seasons003.383008.061.25
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.

2026-06-14
38
Pitching
percentile
Arsenal4 metrics
38
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-14
ERA preseason3.67
ERA current pace3.38
ERA rolling p503.63
Observed weight13%
ERA
1.14 2.32 3.63 4.94 6.12
FIP
1.18 2.40 3.74 5.09 6.30
K%
7.5% 11.7% 16.3% 20.9% 25.1%
BB%
1.7% 3.5% 5.5% 7.5% 9.3%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-14
Mithrandir+

Stuff+ and arsenal context

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

2026-06-14
Curveball Stuff+97
3
Fastball Stuff+106
78
Mithrandir Stuff+101
38
Slider Stuff+99
31
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 37%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 Anderson, Jack · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 48%48%Whiff: 20%20%Called strike: 15%15%First pitch strike: 54%54%Hard hit allowed: 45%45% 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 Anderson, Jack · 2026 arsenal snapshot 4-Seam Fastball: 36.7%Slider: 23.7%Split-Finger: 21.6%Sweeper: 10.8%Curveball: 7.2% FF37% · 91 mphprimary pitch FF 37%SL 24%FS 22%ST 11%CU 7% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Anderson, Jack · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 37% usage, 1″ horizontal break, 15″ drop, 90.7 mphFF91 mphSlider: 24% usage, 3″ horizontal break, 37″ drop, 83.5 mphSL83 mphSplit-Finger: 22% usage, 2″ horizontal break, 36″ drop, 81.6 mphFS82 mphSweeper: 11% usage, 7″ horizontal break, 45″ drop, 78.1 mphST78 mphCurveball: 7% usage, 6″ horizontal break, 54″ drop, 77.2 mphCU77 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 46.9% 45 106 limited sample
SL 42.7% 41 99 limited sample
CB 10.4% 10 97 limited sample
Method note

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

Reference layer

Current snapshot

Age26
Height6' 3"
Weight197 lb
Debut2026-04-14
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

Pitcher Projections 202618.9% K | 4.93 ERAProjection
2026-04-14 @ MIN1 ER / 4 K3.0 IP