Mithrandir Metrics
Player Sacramento River Cats Refreshed Sep 1 06:00 AM ET
Player profile / Sacramento River Cats

Tristan Beck

P · Bats/Throws R/R · 6' 4", 200 lb · Age 30

Cards
0
Modules
0
Live Δ
--
Club Sacramento River Cats Position P Roster Current MLB team Status Out / inactive
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024001.6971016.0141.13
2025104.61311256.2411.11
2026007.07110114.061.57
4 Seasons434.198255171.21291.21
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.

2026-09-01
68
Pitching
percentile
Arsenal3 metrics
68
Rolling projection

Preseason / current pace / Bayesian update

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

Pending

Rolling player projection appears after current-season Statcast and projection joins refresh.

Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-01
Mithrandir+

Stuff+ and arsenal context

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

2026-09-01
Fastball Stuff+99
28
Mithrandir Stuff+105
83
Slider Stuff+109
95
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.

5Pitches 2026Season 38%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 Beck, Tristan · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 51%51%Whiff: 18%18%Called strike: 15%15%First pitch strike: 39%39%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.

Watch the pitches in 3D →

2026
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Beck, Tristan · 2026 arsenal snapshot Sweeper: 37.6%4-Seam Fastball: 37.2%Slider: 19.0%Curveball: 5.5%Changeup: 0.7% ST38% · 83 mphprimary pitch ST 38%FF 37%SL 19%CU 5%CH 1% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Beck, Tristan · 2026 arsenal snapshot 15″30″45″60″ Sweeper: 38% usage, 4″ horizontal break, 40″ drop, 82.8 mphST83 mph4-Seam Fastball: 37% usage, 0″ horizontal break, 15″ drop, 94.5 mphFF94 mphSlider: 19% usage, 0″ horizontal break, 31″ drop, 88.7 mphSL89 mphCurveball: 5% usage, 8″ horizontal break, 55″ drop, 81.6 mphCU82 mphChangeup: 1% usage, 9″ horizontal break, 33″ drop, 86.7 mphCH87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 60.5% 75 109 limited sample
FB 34.7% 43 99 limited sample
CB 3.2% 4 109 limited sample
CH 1.6% 2 81 limited sample
Method note

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

Reference layer

Current snapshot

Age30
Height6' 4"
Weight200 lb
Debut2023-04-20
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

2026-03-20 @ TEX0 ER / 0 K1.0 IP