Mithrandir Metrics
Player Cleveland Guardians Refreshed Sep 27 06:00 AM ET
Player profile / Cleveland Guardians

Shawn Armstrong

P · Bats/Throws R/R · 6' 2", 225 lb · Age 36

Cards
0
Modules
0
Live Δ
yes
Club Cleveland Guardians Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024334.86577166.2661.53
2025432.31712974.0740.81
2026214.58410035.1341.36
12 Seasons17123.884111817456.24681.24
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
38
Pitching
percentile
Pitching9 metrics
42
Arsenal5 metrics
31
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 preseason3.70
ERA current pace4.72
ERA rolling p504.11
Observed weight41%
ERA
3.05 3.55 4.11 4.68 5.18
FIP
3.32 3.50 3.69 3.89 4.06
K%
19.0% 20.8% 22.7% 24.7% 26.4%
BB%
7.4% 8.4% 9.5% 10.7% 11.7%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Pitching · percentile strip
WHIP1.35
46
ERA4.72
32
BB%12.7%
13 -52 vs proj
K%22.4%
52
xwOBA allowed0.315
48
Barrel allowed6.7%
63 +23 vs proj
Fastball velo93.6
35
Hard-hit allowed35.6%
72
Whiff%19.1%
21
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
Cutter Stuff+104
73
Fastball Stuff+100
32
Mithrandir Stuff+100
27
Sinker Stuff+92
7
Slider Stuff+97
17
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 Armstrong, Shawn · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.315 2026-09-13: 0.3082026-09-14: 0.3082026-09-18: 0.3092026-09-19: 0.3092026-09-20: 0.3092026-09-21: 0.3092026-09-22: 0.3092026-09-23: 0.3092026-09-24: 0.3072026-09-25: 0.3072026-09-26: 0.3062026-09-27: 0.315 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.

4Pitches 2026Season 30%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 Armstrong, Shawn · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 51%51%Whiff: 19%19%Called strike: 15%15%First pitch strike: 52%52%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 Armstrong, Shawn · 2026 arsenal snapshot 4-Seam Fastball: 30.5%Sweeper: 28.5%Cutter: 23.3%Sinker: 17.7% FF30% · 93 mphprimary pitch FF 30%ST 29%FC 23%SI 18% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Armstrong, Shawn · 2026 arsenal snapshot 9″18″27″36″ 4-Seam Fastball: 30% usage, 2″ horizontal break, 16″ drop, 93.5 mphFF93 mphSweeper: 29% usage, 3″ horizontal break, 29″ drop, 84.4 mphST84 mphCutter: 23% usage, 1″ horizontal break, 26″ drop, 90.0 mphFC90 mphSinker: 18% usage, 8″ horizontal break, 21″ drop, 93.7 mphSI94 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 31.8% 109 100 limited sample
SL 30.0% 103 97 limited sample
FC 21.6% 74 104 limited sample
SI 16.6% 57 92 limited sample
Method note

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

Reference layer

Current snapshot

Age36
Height6' 2"
Weight225 lb
Debut2015-08-08
Live layer

Delta / regression

ERA Δ+0.79
K% Δ-0.005

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.7σ gap
wOBA-against (actual)0.337
xwOBA-against (deserved)0.315

Armstrong’s wOBA-against sits at 0.337, but the quality of contact underneath says it should be 0.315 — a gap of 0.023, 0.7 standard deviations from the MLB norm over 37 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
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

2026-04-17 vs BAL3 ER / 0 K0.0 IP
2026-04-14 @ STL0 ER / 1 K1.0 IP
2026-04-11 @ ATL0 ER / 2 K1.0 IP
2026-04-07 vs KC0 ER / 2 K1.0 IP
2026-04-05 vs CHC1 ER / 2 K1.1 IP