Mithrandir Metrics
Player Cleveland Guardians Refreshed Jun 1 06:00 AM ET
Player profile / Cleveland Guardians

Tanner Bibee

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

Cards
20
Modules
1
Live Δ
yes
Club Cleveland Guardians 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 preseason4.08
ERA current pace4.57
ERA rolling p504.37
Observed weight59%
ERA
3.52 3.92 4.37 4.82 5.22
FIP
4.20 4.46 4.74 5.02 5.27
K%
18.5% 19.6% 20.9% 22.2% 23.4%
BB%
5.5% 6.1% 6.7% 7.4% 8.0%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%6.4%
82
Barrel allowed12.6%
5 -38 vs proj
Fastball velo94.0
44
Hard-hit allowed46.2%
11
K%19.7%
30 -20 vs proj
Whiff%25.3%
67 +19 vs proj
xwOBA allowed0.334
32 -17 vs proj
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+103
60
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 Bibee, Tanner · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.3072026-05-19: 0.3072026-05-21: 0.3072026-05-23: 0.3132026-05-24: 0.3132026-05-25: 0.3132026-05-26: 0.3312026-05-28: 0.3312026-05-29: 0.3312026-05-30: 0.3312026-05-31: 0.3312026-06-01: 0.334 2026-05-17 2026-06-01 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.

6Pitches 2026Season 26%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 Bibee, Tanner · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 50%50%Whiff: 25%25%Called strike: 16%16%First pitch strike: 48%48%Hard hit allowed: 46%46% 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 Bibee, Tanner · 2026 arsenal snapshot 4-Seam Fastball: 26.2%Cutter: 25.8%Changeup: 18.7%Sinker: 17.3%Curveball: 10.3%Sweeper: 1.7% MIX FF 26%FC 26%CH 19%SI 17%CU 10%ST 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Bibee, Tanner · 2026 arsenal snapshot FF: HB -0.1, IVB 1.2FFFC: HB -0.1, IVB 2.8FCCH: HB -0.7, IVB 2.3CHSI: HB 0.4, IVB 1.7SICU: HB 0.0, IVB 4.5CUST: HB -0.3, IVB 3.2ST horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 25.8% 294 104 qualified
FC 25.4% 289 104 qualified
CH 19.4% 221 99 qualified
SI 17.5% 199 101 limited sample
CB 10.1% 115 105 limited sample
SL 1.9% 22 108 limited sample
Method note

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

Reference layer

Current snapshot

Age27
Height6' 2"
Weight205 lb
Debut2023-04-26
Live layer

Delta / regression

ERA Δ+0.45
K% Δ-0.026

positive regression

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching202026-05-254-Seam Fastball played up through FF/FC tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202622.3% K | 4.12 ERAProjection
2026-05-20 @ DET1 ER / 5 K8.0 IP
2026-04-17 vs BAL0 ER / 5 K6.0 IP
2026-04-12 @ ATL8 ER / 4 K4.2 IP
2026-04-06 vs KC1 ER / 3 K4.2 IP
2026-03-31 @ LAD1 ER / 4 K4.0 IP