Mithrandir Metrics
Player Chicago White Sox Refreshed Sep 26 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
2026253.17586488.0801.19
10 Seasons32354.05281718611.16091.41
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.

2026-09-26
55
Pitching
percentile
Pitching9 metrics
50
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.

2026-09-26
ERA preseason4.11
ERA current pace3.24
ERA rolling p503.58
Observed weight61%
ERA
2.36 2.94 3.58 4.22 4.79
FIP
2.82 3.18 3.59 3.99 4.36
K%
19.3% 20.5% 21.8% 23.1% 24.3%
BB%
7.0% 7.8% 8.7% 9.6% 10.4%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-26
Pitching · percentile strip
WHIP1.25
63
ERA3.24
78
BB%9.2%
47
K%21.6%
45
xwOBA allowed0.320
41
Barrel allowed7.1%
56
Fastball velo94.4
50
Hard-hit allowed39.4%
43
Whiff%20.4%
30
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
Fastball Stuff+108
89
Mithrandir Stuff+107
88
Sinker Stuff+106
80
Slider Stuff+104
73
Changeup Stuff+98
25
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 0.320 2026-09-12: 0.3052026-09-13: 0.3042026-09-14: 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: 0.320 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.

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: 20%20%Called strike: 19%19%First pitch strike: 51%51%Hard hit allowed: 39%39% 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: 31.1%Sinker: 21.3%Curveball: 4.2%Changeup: 2.8%Cutter: 1.9% 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, 94.8 mphFF95 mphSlurve: 31% usage, 5″ horizontal break, 45″ drop, 82.8 mphSV83 mphSinker: 21% usage, 3″ horizontal break, 27″ drop, 93.5 mphSI93 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 35.8% 349 108 qualified
SL 30.7% 299 104 qualified
SI 23.0% 224 106 qualified
CB 4.8% 47 99 limited sample
CH 3.8% 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-0.75
K% Δ-0.008

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.0σ gap
wOBA-against (actual)0.321
xwOBA-against (deserved)0.320

Newcomb’s wOBA-against sits at 0.321, but the quality of contact underneath says it should be 0.320 — a gap of 0.001, 0.0 standard deviations from the MLB norm over 89 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