Mithrandir Metrics
Player Boston Red Sox Refreshed Sep 1 06:00 AM ET
Player profile / Boston Red Sox

Patrick Sandoval

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

Cards
9
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
2026134.2099045.0481.71
7 Seasons20484.031161091581.05771.42
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.

2026-09-01
30
Pitching
percentile
Pitching9 metrics
41
Arsenal6 metrics
46
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-01
ERA preseason3.96
ERA current pace4.54
ERA rolling p504.23
Observed weight46%
ERA
3.12 3.64 4.23 4.81 5.34
FIP
3.07 3.52 4.03 4.53 4.98
K%
18.8% 20.2% 21.8% 23.4% 24.8%
BB%
7.5% 8.3% 9.3% 10.3% 11.2%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-01
Pitching · percentile strip
WHIP1.75
5
ERA4.54
36
BB%10.6%
31 -15 vs proj
K%23.2%
59 +17 vs proj
xwOBA allowed0.344
20
Barrel allowed7.4%
52
Fastball velo93.9
39
Hard-hit allowed33.8%
83
Whiff%21.8%
42
Mithrandir+

Stuff+ and arsenal context

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

2026-09-01
Changeup Stuff+99
25
Curveball Stuff+106
94
Fastball Stuff+102
52
Mithrandir Stuff+100
28
Sinker Stuff+92
7
Slider Stuff+105
74
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 0.344 2026-08-21: 0.3342026-08-22: 0.3342026-08-23: 0.3342026-08-24: 0.3342026-08-25: 0.3392026-08-26: 0.3392026-08-27: 0.3392026-08-28: 0.3392026-08-29: 0.3392026-08-30: 0.3442026-08-31: 0.3442026-09-01: 0.344 2026-08-21 2026-09-01 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 25%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: 49%49%Whiff: 22%22%Called strike: 16%16%First pitch strike: 46%46%Hard hit allowed: 34%34% 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 Slider: 24.7%Changeup: 24.5%Sinker: 21.1%4-Seam Fastball: 20.7%Sweeper: 4.6%Curveball: 4.4% SL25% · 87 mphprimary pitch SL 25%CH 24%SI 21%FF 21%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″ Slider: 25% usage, 2″ horizontal break, 32″ drop, 86.9 mphSL87 mphChangeup: 24% usage, 13″ horizontal break, 29″ drop, 83.7 mphCH84 mphSinker: 21% usage, 4″ horizontal break, 18″ drop, 94.0 mphSI94 mph4-Seam Fastball: 21% usage, 5″ horizontal break, 15″ drop, 93.7 mphFF94 mphSweeper: 5% usage, 17″ horizontal break, 40″ drop, 81.0 mphST81 mphCurveball: 4% usage, 10″ horizontal break, 59″ drop, 75.6 mphCU76 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CH 27.3% 97 99 limited sample
SL 26.2% 93 105 limited sample
SI 23.1% 82 92 limited sample
FB 17.5% 62 102 limited sample
CB 5.9% 21 106 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+0.63
K% Δ+0.023

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.1σ gap
wOBA-against (actual)0.379
xwOBA-against (deserved)0.344

Sandoval’s wOBA-against sits at 0.379, but the quality of contact underneath says it should be 0.344 — a gap of 0.035, 1.1 standard deviations from the MLB norm over 44 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
Pitching92026-08-28Sinker played up through SI/ST tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202620.9% K | 3.91 ERAProjection