Mithrandir Metrics
Pitcher projection 2026 Refreshed Sep 26 06:00 AM ET
Pitcher projection / AZ · 2026

Walston, Blake

Run-prevention profile built on workable command

Primary
21.5% K%
Range
14.9% to 27.6%
Live Δ
--
Team AZ Archetype Volatile contact Age 25 Status Out / inactive
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
26
Pitching
percentile
Arsenal2 metrics
26
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 preseason3.79
ERA current pace3.00
ERA rolling p503.75
Observed weight5%
ERA
2.10 2.88 3.75 4.61 5.39
FIP
3.32 3.50 3.71 3.92 4.11
K%
13.2% 16.1% 19.3% 22.5% 25.4%
BB%
6.1% 7.6% 9.2% 10.8% 12.3%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-09-26
Mithrandir+

Stuff+ and arsenal context

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

2026-09-26
Fastball Stuff+94
9
Mithrandir Stuff+101
42
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 40%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 Walston, Blake · Aggregate zone metrics; not pitch-by-pitch locations Edge: 40%40%Zone: 40%40%Whiff: 33%33%Called strike: 15%15%First pitch strike: 23%23%Hard hit allowed: 12%12% 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 Walston, Blake · 2026 arsenal snapshot 4-Seam Fastball: 40.5%Slider: 23.8%Curveball: 14.3%Cutter: 14.3%Changeup: 4.8%Sinker: 2.4% FF40% · 92 mphprimary pitch FF 40%SL 24%CU 14%FC 14%CH 5%SI 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Walston, Blake · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 40% usage, 2″ horizontal break, 17″ drop, 91.6 mphFF92 mphSlider: 24% usage, 1″ horizontal break, 32″ drop, 84.2 mphSL84 mphCurveball: 14% usage, 5″ horizontal break, 56″ drop, 76.5 mphCU76 mphCutter: 14% usage, 0″ horizontal break, 27″ drop, 86.2 mphFC86 mphChangeup: 5% usage, 11″ horizontal break, 40″ drop, 84.6 mphCH85 mphSinker: 2% usage, 14″ horizontal break, 26″ drop, 90.5 mphSI90 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 40.5% 17 94 limited sample
SL 19.0% 8 109 limited sample
FC 19.0% 8 106 limited sample
CB 14.3% 6 111 limited sample
CH 4.8% 2 78 limited sample
SI 2.4% 1 80 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
Projection leans on stable run prevention more than one extreme carrying pitch trait.
pitcher
Live context

Current-season signal

No Live State delta is available for this player yet.

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings66.0----
Batters Faced298----
K%21.5%14.9% to 27.6%+/- 6.4%
BB%8.9%5.9% to 12.2%+/- 3.2%
Whiff%20.6%12.6% to 24.3%+/- 5.9%
HR/91.660.83 to 1.95+/- 0.56
xwOBA Against0.3300.230 to 0.355+/- 0.063
Barrel% Allowed9.0%5.1% to 11.5%+/- 3.2%
ERA4.441.85 to 5.32+/- 1.73
FIP4.423.02 to 3.85+/- 0.42
WHIP1.3120.912 to 1.601+/- 0.344
Platoon / Shape
vs LHH

17 career BF

xwOBA0.191
K%16.3%
BB%7.1%
Barrel5.7%
vs RHH

79 career BF

xwOBA0.209
K%15.2%
BB%7.7%
Barrel7.4%