Mithrandir Metrics
Player Detroit Tigers Refreshed Sep 29 06:00 AM ET
Player profile / Detroit Tigers

River Ryan

P · Bats/Throws R/R · 6' 2", 195 lb · Age 28

Cards
3
Modules
1
Live Δ
--
Club Detroit Tigers Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024101.3344020.1181.18
2026014.152204.161.85
2 Seasons111.8266024.2241.30
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.

2026-09-29
12
Pitching
percentile
Arsenal4 metrics
12
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-29
ERA preseason3.43
ERA current pace0.00
ERA rolling p502.98
Observed weight13%
ERA
0.89 1.88 2.98 4.08 5.07
FIP
2.08 2.92 3.85 4.78 5.61
K%
15.6% 18.5% 21.8% 25.0% 27.9%
BB%
5.3% 6.8% 8.5% 10.2% 11.7%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-29
Mithrandir+

Stuff+ and arsenal context

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

2026-09-29
Changeup Stuff+86
3
Fastball Stuff+97
19
Mithrandir Stuff+99
22
Slider Stuff+92
4
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.

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 32%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 Ryan, River · Aggregate zone metrics; not pitch-by-pitch locations Edge: 44%44%Zone: 43%43%Whiff: 32%32%Called strike: 20%20%First pitch strike: 58%58%Hard hit allowed: 33%33% 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 Ryan, River · 2026 arsenal snapshot 4-Seam Fastball: 32.3%Slider: 25.4%Changeup: 13.8%Cutter: 11.5%Curveball: 10.8%Sinker: 6.2% FF32% · 97 mphprimary pitch FF 32%SL 25%CH 14%FC 12%CU 11%SI 6% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Ryan, River · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 32% usage, 3″ horizontal break, 12″ drop, 97.0 mphFF97 mphSlider: 25% usage, 1″ horizontal break, 33″ drop, 90.8 mphSL91 mphChangeup: 14% usage, 10″ horizontal break, 30″ drop, 90.7 mphCH91 mphCutter: 12% usage, 3″ horizontal break, 24″ drop, 93.6 mphFC94 mphCurveball: 11% usage, 4″ horizontal break, 54″ drop, 83.0 mphCU83 mphSinker: 6% usage, 11″ horizontal break, 22″ drop, 94.8 mphSI95 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 39.0% 32 97 limited sample
SL 18.3% 15 92 limited sample
CH 12.2% 10 86 limited sample
FC 11.0% 9 105 limited sample
CB 9.8% 8 115 limited sample
SI 9.8% 8 100 limited sample
Method note

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

Reference layer

Current snapshot

Age28
Height6' 2"
Weight195 lb
Debut2024-07-22
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching32026-09-27Four-Seam Fastball played up through FF/SL tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202621.8% K | 4.17 ERAProjection