Mithrandir Metrics
Player New York Mets Refreshed Sep 26 06:00 AM ET
Player profile / New York Mets

Zac Thornton

P · Bats/Throws L/L · 6' 3", 170 lb · Age 24

Cards
17
Modules
1
Live Δ
yes
Club New York Mets Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2026563.421515084.1631.14
1 Seasons563.421515084.1631.14
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.

2026-09-26
61
Pitching
percentile
Pitching9 metrics
42
Arsenal12 metrics
42
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.

2026-09-26
Pitching · percentile strip
WHIP1.15
79
ERA3.40
72
BB%5.1%
95
K%18.1%
22
xwOBA allowed0.325
34
Barrel allowed9.3%
22
Fastball velo92.2
17
Hard-hit allowed41.0%
32
Whiff%16.1%
6
Mithrandir+

Stuff+ and arsenal context

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

2026-09-26
Changeup Stuff+102
49
Curveball Stuff+105
93
Cutter Stuff+104
75
Cutter Stuff+102
55
Fastball Stuff+101
42
Fastball Stuff+100
35
Mithrandir Stuff+103
55
Mithrandir Stuff+99
26
Sinker Stuff+97
17
Sinker Stuff+84
1
Slider Stuff+102
54
Slider Stuff+87
2
Rolling form chart

xwOBA allowed snapshot line

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

12 snapshots
Mithrandir Metrics ROLLING XWOBA LINE Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Rolling xwOBA allowed Thornton, Zac · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.325 2026-09-12: 0.3312026-09-13: 0.3282026-09-14: 0.3282026-09-18: 0.3282026-09-19: 0.3292026-09-20: 0.3292026-09-21: 0.3292026-09-22: 0.3292026-09-23: 0.3292026-09-24: 0.3292026-09-25: 0.3292026-09-26: 0.325 2026-09-12 2026-09-26 xwOBA allowed MITHRANDIR · CHARTS
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.

8Pitches 2026Season 32%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 Thornton, Zac · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 51%51%Whiff: 16%16%Called strike: 15%15%First pitch strike: 51%51%Hard hit allowed: 41%41% 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 Thornton, Zac · 2026 arsenal snapshot Cutter: 32.2%4-Seam Fastball: 26.0%Sweeper: 15.0%Sinker: 8.8%Slider: 7.7%Curveball: 5.6% FC32% · 88 mphprimary pitch FC 32%FF 26%ST 15%SI 9%SL 8%CU 6% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Thornton, Zac · 2026 arsenal snapshot 12″24″36″48″ Cutter: 32% usage, 1″ horizontal break, 26″ drop, 88.3 mphFC88 mph4-Seam Fastball: 26% usage, 2″ horizontal break, 15″ drop, 92.2 mphFF92 mphSweeper: 15% usage, 2″ horizontal break, 42″ drop, 80.0 mphST80 mphSinker: 9% usage, 5″ horizontal break, 20″ drop, 92.2 mphSI92 mphSlider: 8% usage, 2″ horizontal break, 36″ drop, 84.7 mphSL85 mphCurveball: 6% usage, 4″ horizontal break, 42″ drop, 82.6 mphCU83 mphChangeup: 4% usage, 15″ horizontal break, 28″ drop, 84.4 mphCH84 mphSplit-Finger: 0% usage, 8″ horizontal break, 37″ drop, 82.2 mphFS82 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FC 25.3% 164 102 limited sample
FB 20.2% 131 101 limited sample
SL 16.0% 104 102 limited sample
FC 11.0% 71 104 limited sample
CB 7.1% 46 105 limited sample
FB 5.6% 36 100 limited sample
SL 4.0% 26 87 limited sample
CH 3.9% 25 102 limited sample
SI 3.2% 21 84 limited sample
SI 3.1% 20 97 limited sample
CH 0.3% 2 144 limited sample
CB 0.3% 2 100 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' 3"
Weight170 lb
Debut2026-05-20
Live layer

Delta / regression

ERA Δ--
K% Δ--

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.1σ gap
wOBA-against (actual)0.329
xwOBA-against (deserved)0.325

Thornton’s wOBA-against sits at 0.329, but the quality of contact underneath says it should be 0.325 — a gap of 0.004, 0.1 standard deviations from the MLB norm over 87 IP. The results have been worse than the process deserves; as the sample grows, expect the numbers to climb back toward the underlying level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching172026-09-24Command and chase profile drove the outing
Projection links / recent games

Available detail

2026-05-20 @ WSH4 ER / 3 K4.1 IP