Mithrandir Metrics
Player Syracuse Mets Refreshed Jun 12 06:00 AM ET
Player profile / Syracuse Mets

Joey Gerber

P · Bats/Throws R/R · 6' 4", 212 lb · Age 29

Cards
0
Modules
0
Live Δ
--
Club Syracuse Mets Position P Roster Reassigned to Minors Status Out / inactive
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2020114.02170015.261.15
2025002.082004.140.69
2026001.803005.061.20
3 Seasons113.24220025.0161.08
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.

2026-06-12
40
Pitching
percentile
Arsenal3 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.

2026-06-12
ERA preseason3.61
ERA current pace0.00
ERA rolling p503.32
Observed weight8%
ERA
0.99 2.09 3.32 4.55 5.65
FIP
2.64 3.38 4.20 5.03 5.77
K%
15.4% 18.4% 21.8% 25.1% 28.1%
BB%
0.1% 2.3% 4.8% 7.2% 9.5%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-12
Mithrandir+

Stuff+ and arsenal context

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

2026-06-12
Fastball Stuff+89
3
Mithrandir Stuff+97
19
Slider Stuff+111
96
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.

3Pitches 2025Season 70%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 Gerber, Joey · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 54%54%Whiff: 8%8%Called strike: 22%22%First pitch strike: 43%43%Hard hit allowed: 50%50% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Pitch arsenal

Usage mix, movement map, and Stuff+ composition

2025 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 →

2025
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Gerber, Joey · 2025 arsenal snapshot 4-Seam Fastball: 70.3%Slider: 28.1%Changeup: 1.6% FF70% · 94 mphprimary pitch FF 70%SL 28%CH 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Gerber, Joey · 2025 arsenal snapshot 9″18″27″36″ 4-Seam Fastball: 70% usage, 2″ horizontal break, 14″ drop, 93.8 mphFF94 mphSlider: 28% usage, 1″ horizontal break, 34″ drop, 84.9 mphSL85 mphChangeup: 2% usage, 16″ horizontal break, 27″ drop, 87.4 mphCH87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 55.3% 26 89 limited sample
SL 44.7% 21 111 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' 4"
Weight212 lb
Debut2020-08-04
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 202623.0% K | 4.41 ERAProjection
2026-04-13 @ LAD0 ER / 5 K2.0 IP