Mithrandir Metrics
Player Chicago White Sox Refreshed Sep 28 06:00 AM ET
Player profile / Chicago White Sox

Sean Newcomb

P · Bats/Throws L/L · 6' 5", 255 lb · Age 33

Cards
7
Modules
1
Live Δ
yes
Club Chicago White Sox Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024106.3070010.071.70
2025252.73485292.1911.35
2026253.09606490.1841.18
10 Seasons32354.03283718613.26131.41
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
57
Pitching
percentile
Pitching9 metrics
52
Arsenal7 metrics
53
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-28
ERA preseason4.11
ERA current pace3.17
ERA rolling p503.53
Observed weight62%
ERA
2.31 2.89 3.53 4.17 4.75
FIP
2.78 3.14 3.55 3.95 4.32
K%
19.7% 20.8% 22.1% 23.4% 24.6%
BB%
7.0% 7.8% 8.7% 9.6% 10.4%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-28
Pitching · percentile strip
WHIP1.24
65
ERA3.17
79
BB%9.3%
46
K%22.1%
50
xwOBA allowed0.317
44
Barrel allowed7.0%
59
Fastball velo94.4
50
Hard-hit allowed39.9%
39
Whiff%21.3%
38 +21 vs proj
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
Fastball Stuff+107
87
Mithrandir Stuff+106
87
Sinker Stuff+106
79
Slider Stuff+105
75
Changeup Stuff+98
26
Curveball Stuff+99
14
Cutter Stuff+93
3
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 Newcomb, Sean · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.317 2026-09-14: 0.3042026-09-18: 0.3122026-09-19: 0.3172026-09-20: 0.3172026-09-21: 0.3172026-09-22: 0.3172026-09-23: 0.3172026-09-24: 0.3202026-09-25: 0.3202026-09-26: 0.3202026-09-27: 0.3182026-09-28: 0.317 2026-09-14 2026-09-28 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.

6Pitches 2026Season 39%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 Newcomb, Sean · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 50%50%Whiff: 21%21%Called strike: 19%19%First pitch strike: 51%51%Hard hit allowed: 40%40% 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 Newcomb, Sean · 2026 arsenal snapshot 4-Seam Fastball: 38.7%Slurve: 31.2%Sinker: 21.2%Curveball: 4.3%Changeup: 2.7%Cutter: 1.8% FF39% · 95 mphprimary pitch FF 39%SV 31%SI 21%CU 4%CH 3%FC 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Newcomb, Sean · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 39% usage, 4″ horizontal break, 16″ drop, 94.9 mphFF95 mphSlurve: 31% usage, 5″ horizontal break, 45″ drop, 82.9 mphSV83 mphSinker: 21% usage, 3″ horizontal break, 27″ drop, 93.5 mphSI94 mphCurveball: 4% usage, 13″ horizontal break, 56″ drop, 80.8 mphCU81 mphChangeup: 3% usage, 13″ horizontal break, 35″ drop, 86.8 mphCH87 mphCutter: 2% usage, 1″ horizontal break, 22″ drop, 91.3 mphFC91 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 35.9% 364 107 qualified
SL 31.0% 314 105 qualified
SI 22.7% 230 106 qualified
CB 4.9% 50 99 limited sample
CH 3.6% 37 98 limited sample
FC 1.9% 19 93 limited sample
Method note

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

Reference layer

Current snapshot

Age33
Height6' 5"
Weight255 lb
Debut2017-06-10
Live layer

Delta / regression

ERA Δ-0.82
K% Δ-0.003

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.0σ gap
wOBA-against (actual)0.319
xwOBA-against (deserved)0.317

Newcomb’s wOBA-against sits at 0.319, but the quality of contact underneath says it should be 0.317 — a gap of 0.001, 0.0 standard deviations from the MLB norm over 92 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
Pitching72026-09-14Stuff and strike quality carried the outing
Projection links / recent games

Available detail

Pitcher Projections 202622.4% K | 3.99 ERAProjection
2026-05-20 @ SEA2 ER / 1 K2.0 IP
2026-04-12 @ KC2 ER / 0 K0.1 IP
2026-04-11 @ KC0 ER / 1 K2.0 IP
2026-04-08 vs BAL0 ER / 2 K1.0 IP
2026-04-07 vs BAL1 ER / 1 K1.1 IP