Mithrandir Metrics
Player Boston Red Sox Refreshed Sep 27 06:00 AM ET
Player profile / Boston Red Sox

Patrick Sandoval

P · Bats/Throws L/L · 6' 3", 190 lb · Age 29

Cards
12
Modules
1
Live Δ
yes
Club Boston Red Sox Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20237134.1128280144.21281.51
2024285.081616079.2811.51
2026175.121513070.1731.68
7 Seasons20524.141221131606.16021.42
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.

2026-09-27
28
Pitching
percentile
Pitching9 metrics
40
Arsenal6 metrics
47
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-27
ERA preseason3.93
ERA current pace5.07
ERA rolling p504.56
Observed weight55%
ERA
3.45 3.98 4.56 5.15 5.67
FIP
2.92 3.37 3.88 4.39 4.85
K%
19.1% 20.4% 21.8% 23.2% 24.4%
BB%
7.7% 8.5% 9.4% 10.3% 11.1%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Pitching · percentile strip
WHIP1.71
6
ERA5.07
25
BB%10.4%
32
K%22.7%
56
xwOBA allowed0.339
23
Barrel allowed6.6%
65
Fastball velo93.6
36
Hard-hit allowed35.9%
70
Whiff%22.1%
47
Mithrandir+

Stuff+ and arsenal context

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

2026-09-27
Mithrandir Stuff+101
38
Changeup Stuff+103
64
Curveball Stuff+102
45
Fastball Stuff+104
63
Sinker Stuff+91
5
Slider Stuff+104
69
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 Sandoval, Patrick · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.339 2026-09-13: 0.3492026-09-14: 0.3492026-09-18: 0.3502026-09-19: 0.3502026-09-20: 0.3502026-09-21: 0.3422026-09-22: 0.3422026-09-23: 0.3422026-09-24: 0.3422026-09-25: 0.3422026-09-26: 0.3392026-09-27: 0.339 2026-09-13 2026-09-27 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 26%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 Sandoval, Patrick · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 50%50%Whiff: 22%22%Called strike: 16%16%First pitch strike: 45%45%Hard hit allowed: 36%36% 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 Sandoval, Patrick · 2026 arsenal snapshot Changeup: 26.0%4-Seam Fastball: 24.8%Slider: 21.7%Sinker: 18.0%Sweeper: 5.3%Curveball: 4.2% CH26% · 83 mphprimary pitch CH 26%FF 25%SL 22%SI 18%ST 5%CU 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Sandoval, Patrick · 2026 arsenal snapshot 15″30″45″60″ Changeup: 26% usage, 14″ horizontal break, 30″ drop, 83.3 mphCH83 mph4-Seam Fastball: 25% usage, 5″ horizontal break, 15″ drop, 93.4 mphFF93 mphSlider: 22% usage, 2″ horizontal break, 32″ drop, 86.7 mphSL87 mphSinker: 18% usage, 4″ horizontal break, 18″ drop, 93.9 mphSI94 mphSweeper: 5% usage, 11″ horizontal break, 40″ drop, 80.6 mphST81 mphCurveball: 4% usage, 10″ horizontal break, 59″ drop, 75.7 mphCU76 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CH 28.3% 178 103 limited sample
SL 24.8% 156 104 limited sample
FB 24.4% 153 104 limited sample
SI 17.2% 108 91 limited sample
CB 5.3% 33 102 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' 3"
Weight190 lb
Debut2019-08-05
Live layer

Delta / regression

ERA Δ+1.16
K% Δ+0.018

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.9σ gap
wOBA-against (actual)0.366
xwOBA-against (deserved)0.339

Sandoval’s wOBA-against sits at 0.366, but the quality of contact underneath says it should be 0.339 — a gap of 0.027, 0.9 standard deviations from the MLB norm over 64 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
Pitching122026-09-20Four-Seam Fastball played up through FF/SL tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202620.9% K | 3.91 ERAProjection