Mithrandir Metrics
Pitcher projection 2026 Refreshed Sep 5 06:00 AM ET
Pitcher projection / LAA · 2026

Peralta, Sammy

Run-prevention profile built on workable command

Primary
18.7% K%
Range
11.3% to 24.6%
Live Δ
--
Team LAA Archetype Balanced reliever Age 28 Status Healthy / active roster
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.

2026-09-05
44
Pitching
percentile
Arsenal5 metrics
44
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-05
ERA preseason4.52
ERA current pace7.50
ERA rolling p505.16
Observed weight21%
ERA
3.06 4.05 5.16 6.26 7.26
FIP
2.14 3.09 4.14 5.19 6.14
K%
13.8% 16.4% 19.2% 22.1% 24.7%
BB%
4.8% 6.7% 8.8% 10.9% 12.8%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-09-05
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; Arsenal Decomposition remains descriptive support under Stuff+.

2026-09-05
Changeup Stuff+97
19
Fastball Stuff+92
5
Mithrandir Stuff+103
55
Sinker Stuff+102
55
Slider Stuff+107
87
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 30%Top usage
ride armside gloveside +Arsenal gap +Shape contrast
Rolling form chart

xwOBA allowed snapshot line

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

0 snapshots
No chart yet

No Live State xwOBA snapshots are available for this player.

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 Peralta, Sammy · Aggregate zone metrics; not pitch-by-pitch locations Edge: 41%41%Zone: 54%54%Whiff: 16%16%Called strike: 23%23%First pitch strike: 58%58%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.

2026
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Peralta, Sammy · 2026 arsenal snapshot Sinker: 29.9%Slider: 22.8%Sweeper: 17.9%Changeup: 14.7%4-Seam Fastball: 13.4%Cutter: 1.3% SI30% · 89 mphprimary pitch SI 30%SL 23%ST 18%CH 15%FF 13%FC 1% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Peralta, Sammy · 2026 arsenal snapshot 12″24″36″48″ Sinker: 30% usage, 2″ horizontal break, 31″ drop, 89.1 mphSI89 mphSlider: 23% usage, 3″ horizontal break, 36″ drop, 80.7 mphSL81 mphSweeper: 18% usage, 5″ horizontal break, 39″ drop, 80.0 mphST80 mphChangeup: 15% usage, 16″ horizontal break, 39″ drop, 84.3 mphCH84 mph4-Seam Fastball: 13% usage, 1″ horizontal break, 26″ drop, 88.7 mphFF89 mphCutter: 1% usage, 5″ horizontal break, 33″ drop, 83.5 mphFC84 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 42.9% 72 107 limited sample
SI 29.2% 49 102 limited sample
CH 14.3% 24 97 limited sample
FB 13.7% 23 92 limited sample
Method note

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

Model read

Projection notes

1
templated note
Plays better against lefties right now (0.250 vs 0.280 xwOBA allowed split).
2
templated note
Volume stays relief-shaped even when the bat-miss traits are strong.
3
templated note
Home park slightly inflates the home-run risk band.
4
templated note
Primary mix entering the season: Slider 48%, Sinker 32%, Changeup 10%.
Live context

Current-season signal

No Live State delta is available for this player yet.

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings30.6----
Batters Faced144----
K%18.7%11.3% to 24.6%+/- 6.7%
BB%8.9%4.5% to 14.4%+/- 4.9%
Whiff%20.2%14.0% to 26.5%+/- 6.3%
HR/91.100.21 to 2.28+/- 1.04
xwOBA Against0.3160.238 to 0.377+/- 0.069
Barrel% Allowed6.7%3.3% to 11.2%+/- 3.9%
ERA4.081.87 to 7.01+/- 2.57
FIP4.072.27 to 7.18+/- 2.46
WHIP1.3771.131 to 1.860+/- 0.364
Platoon / Shape
vs LHH

86 career BF

xwOBA0.250
K%14.1%
BB%8.3%
Barrel4.5%
vs RHH

135 career BF

xwOBA0.280
K%12.1%
BB%8.6%
Barrel6.0%