Mithrandir Metrics
Player San Francisco Giants Refreshed Jun 1 06:00 AM ET
Player profile / San Francisco Giants

Tristan Beck

P profile with live context, projection links, and Mithrandir card history when available.

Cards
0
Modules
0
Live Δ
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Club San Francisco Giants Position P Roster Active Status Healthy / active roster
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-01
ERA preseason4.23
ERA current pace0.00
ERA rolling p503.79
Observed weight10%
ERA
2.21 2.96 3.79 4.61 5.36
FIP
3.81 4.08 4.38 4.68 4.95
K%
12.5% 14.9% 17.5% 20.1% 22.5%
BB%
4.1% 5.2% 6.5% 7.8% 9.0%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; missing coverage is shown explicitly.

2026-06-01
Mithrandir Stuff+108
91
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 2025Season 33%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: 38%38%Zone: 54%54%Whiff: 18%18%Called strike: 11%11%First pitch strike: 29%29%Hard hit allowed: 44%44% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Pitch arsenal

Usage mix, movement map, and Stuff+ composition

2025 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.

2025
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Beck, Tristan · 2025 arsenal snapshot 4-Seam Fastball: 33.4%Sweeper: 27.9%Slider: 21.7%Curveball: 16.9%Pitch Out: 0.1% MIX FF 33%ST 28%SL 22%CU 17%PO 0% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Beck, Tristan · 2025 arsenal snapshot FF: HB 0.0, IVB 1.2FFST: HB -0.3, IVB 3.5STSL: HB -0.1, IVB 2.3SLCU: HB 0.3, IVB 4.7CUPO: HB -0.7, IVB 1.5PO horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 69.0% 49 108 limited sample
FB 28.2% 20 105 limited sample
CB 2.8% 2 111 limited sample
Method note

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

Reference layer

Current snapshot

Age29
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

Pitcher Projections 202618.7% K | 4.48 ERAProjection
2026-03-20 @ TEX0 ER / 0 K1.0 IP