Mithrandir Metrics
Pitcher projection 2026 Refreshed Aug 31 06:00 AM ET
Pitcher projection / SEA · 2026

Muñoz, Andrés

High-leverage relief profile with bat-miss

Primary
28.3% K%
Range
23.6% to 39.2%
Live Δ
yes
Team SEA Archetype Balanced reliever 2 Age 27 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.

2026-08-31
65
Pitching
percentile
Pitching9 metrics
63
Arsenal5 metrics
50
Rolling projection

Preseason / current pace / Bayesian update

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

2026-08-31
ERA preseason2.67
ERA current pace4.37
ERA rolling p503.48
Observed weight47%
ERA
1.73 2.56 3.48 4.40 5.23
FIP
1.83 2.46 3.17 3.88 4.51
K%
29.1% 31.2% 33.6% 36.0% 38.2%
BB%
7.6% 8.9% 10.2% 11.5% 12.8%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-08-31
Pitching · percentile strip
WHIP1.24
66
ERA4.37
41
BB%10.1%
37
K%37.8%
99
xwOBA allowed0.283
82
Barrel allowed9.1%
25
Fastball velo99.4
99
Hard-hit allowed43.6%
18
Whiff%38.6%
100
Mithrandir+

Stuff+ and arsenal context

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

2026-08-31
Mithrandir Stuff+102
52
Slider Stuff+99
30
Changeup Stuff+95
13
Fastball Stuff+105
71
Sinker Stuff+106
85
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.

4Pitches 2026Season 46%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

12 snapshots
Mithrandir Metrics ROLLING XWOBA LINE Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Rolling xwOBA allowed Muñoz, Andrés · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.283 2026-08-20: 0.2832026-08-21: 0.2832026-08-22: 0.2832026-08-23: 0.2832026-08-24: 0.2832026-08-25: 0.2822026-08-26: 0.2822026-08-27: 0.2832026-08-28: 0.2832026-08-29: 0.2832026-08-30: 0.2832026-08-31: 0.283 2026-08-20 2026-08-31 xwOBA allowed MITHRANDIR · CHARTS
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 Muñoz, Andrés · Aggregate zone metrics; not pitch-by-pitch locations Edge: 34%34%Zone: 42%42%Whiff: 39%39%Called strike: 17%17%First pitch strike: 55%55%Hard hit allowed: 44%44% 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 Muñoz, Andrés · 2026 arsenal snapshot Slider: 46.4%4-Seam Fastball: 40.0%Sinker: 8.4%Changeup: 5.2% SL46% · 87 mphprimary pitch SL 46%FF 40%SI 8%CH 5% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Muñoz, Andrés · 2026 arsenal snapshot 12″24″36″48″ Slider: 46% usage, 0″ horizontal break, 37″ drop, 87.1 mphSL87 mph4-Seam Fastball: 40% usage, 2″ horizontal break, 14″ drop, 99.6 mphFF100 mphSinker: 8% usage, 10″ horizontal break, 21″ drop, 98.3 mphSI98 mphChangeup: 5% usage, 12″ horizontal break, 34″ drop, 92.4 mphCH92 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 50.5% 279 99 qualified
FB 34.9% 193 105 limited sample
SI 8.7% 48 106 limited sample
CH 6.0% 33 95 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
Volume stays relief-shaped even when the bat-miss traits are strong.
pitcher
2
templated note
Primary mix entering the season: Slider 52%, 4-Seam Fastball 34%, Sinker 13%.
pitcher
Live context

Current-season signal

ERA Δ+1.58
K% Δ+0.095
Sample50.7 IP

positive regression

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings45.9----
Batters Faced188----
K%28.3%23.6% to 39.2%+/- 7.8%
BB%10.4%5.7% to 14.1%+/- 4.2%
Whiff%32.9%28.8% to 40.9%+/- 6.0%
HR/91.060.09 to 1.72+/- 0.81
xwOBA Against0.2800.207 to 0.343+/- 0.068
Barrel% Allowed8.4%4.0% to 12.3%+/- 4.2%
ERA2.790.37 to 5.36+/- 2.50
FIP3.221.69 to 5.48+/- 1.90
WHIP1.1330.809 to 1.522+/- 0.356
Platoon / Shape
vs LHH

556 career BF

xwOBA0.265
K%29.3%
BB%11.5%
Barrel7.8%
vs RHH

601 career BF

xwOBA0.250
K%28.5%
BB%8.0%
Barrel6.8%