Mithrandir Metrics
Player Syracuse Mets Refreshed Jul 18 06:00 AM ET
Player profile / Syracuse Mets

Jonah Tong

P · Bats/Throws R/R · 6' 1", 180 lb · Age 23

Cards
3
Modules
1
Live Δ
--
Club Syracuse Mets Position P Roster Reassigned to Minors Status Out / inactive
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2025237.7155018.2221.77
2026113.6030010.071.50
2 Seasons346.2885028.2291.67
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.

2026-07-18
40
Pitching
percentile
Arsenal4 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.

2026-07-18
ERA preseason4.24
ERA current pace3.60
ERA rolling p504.10
Observed weight22%
ERA
2.04 3.02 4.10 5.19 6.17
FIP
2.42 2.95 3.54 4.14 4.67
K%
17.1% 19.5% 22.2% 24.9% 27.3%
BB%
6.4% 7.7% 9.1% 10.5% 11.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-07-18
Mithrandir+

Stuff+ and arsenal context

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

2026-07-18
Changeup Stuff+99
27
Cutter Stuff+109
99
Fastball Stuff+96
15
Mithrandir Stuff+98
19
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.

4Pitches 2026Season 44%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 Tong, Jonah · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 44%44%Whiff: 22%22%Called strike: 13%13%First pitch strike: 42%42%Hard hit allowed: 33%33% 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 Tong, Jonah · 2026 arsenal snapshot 4-Seam Fastball: 43.6%Changeup: 27.8%Cutter: 20.3%Curveball: 8.3% FF44% · 96 mphprimary pitch FF 44%CH 28%FC 20%CU 8% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Tong, Jonah · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 44% usage, 0″ horizontal break, 12″ drop, 95.5 mphFF96 mphChangeup: 28% usage, 5″ horizontal break, 29″ drop, 86.4 mphCH86 mphCutter: 20% usage, 1″ horizontal break, 22″ drop, 91.2 mphFC91 mphCurveball: 8% usage, 1″ horizontal break, 55″ drop, 80.3 mphCU80 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 48.1% 50 96 limited sample
CH 26.0% 27 99 limited sample
FC 17.3% 18 109 limited sample
CB 8.7% 9 100 limited sample
Method note

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

Reference layer

Current snapshot

Age23
Height6' 1"
Weight180 lb
Debut2025-08-29
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching32026-03-214-Seam Fastball played up through FC/CU tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202622.4% K | 4.58 ERAProjection
2026-03-21 vs HOU3 ER / 5 K4.1 IP