Mithrandir Metrics
Player Cleveland Guardians Refreshed Jul 17 06:00 AM ET
Player profile / Cleveland Guardians

Tanner Bibee

P · Bats/Throws R/R · 6' 2", 205 lb · Age 27

Cards
24
Modules
1
Live Δ
yes
Club Cleveland Guardians Position P Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20241283.4731310173.21871.12
202512114.2431310182.11621.23
2026393.9020200113.0871.15
4 Seasons37323.671071070611.05771.17
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.

2026-07-17
49
Pitching
percentile
Pitching9 metrics
41
Arsenal7 metrics
62
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.

2026-07-17
Pitching · percentile strip
WHIP1.26
60
ERA3.90
52
BB%6.6%
80
K%18.6%
23
xwOBA allowed0.332
31
Barrel allowed10.8%
13
Fastball velo93.7
38
Hard-hit allowed42.3%
28
Whiff%22.6%
47
Mithrandir+

Stuff+ and arsenal context

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

2026-07-17
Changeup Stuff+99
28
Cutter Stuff+105
73
Fastball Stuff+103
53
Mithrandir Stuff+104
63
Sinker Stuff+103
56
Curveball Stuff+104
77
Slider Stuff+106
84
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 0.332 2026-07-06: 0.3282026-07-07: 0.3362026-07-08: 0.3362026-07-09: 0.3362026-07-10: 0.3362026-07-11: 0.3362026-07-12: 0.3362026-07-13: 0.3322026-07-14: 0.3322026-07-15: 0.3322026-07-16: 0.3322026-07-17: 0.332 2026-07-06 2026-07-17 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 25%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: 37%37%Zone: 50%50%Whiff: 23%23%Called strike: 16%16%First pitch strike: 50%50%Hard hit allowed: 42%42% 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 Bibee, Tanner · 2026 arsenal snapshot Cutter: 24.7%4-Seam Fastball: 23.0%Sinker: 22.6%Changeup: 15.7%Curveball: 10.9%Sweeper: 3.1% FC25% · 86 mphprimary pitch FC 25%FF 23%SI 23%CH 16%CU 11%ST 3% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Bibee, Tanner · 2026 arsenal snapshot 15″30″45″60″ Cutter: 25% usage, 1″ horizontal break, 34″ drop, 86.0 mphFC86 mph4-Seam Fastball: 23% usage, 1″ horizontal break, 15″ drop, 94.0 mphFF94 mphSinker: 23% usage, 4″ horizontal break, 22″ drop, 93.5 mphSI93 mphChangeup: 16% usage, 8″ horizontal break, 28″ drop, 81.1 mphCH81 mphCurveball: 11% usage, 2″ horizontal break, 53″ drop, 78.0 mphCU78 mphSweeper: 3% usage, 3″ horizontal break, 39″ drop, 83.0 mphST83 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FC 25.1% 331 105 qualified
FB 24.5% 324 103 qualified
SI 20.0% 264 103 qualified
CH 17.7% 234 99 qualified
CB 10.5% 138 104 limited sample
SL 2.2% 29 106 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--
K% Δ--

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.5σ gap
wOBA-against (actual)0.371
xwOBA-against (deserved)0.332

Bibee’s wOBA-against sits at 0.371, but the quality of contact underneath says it should be 0.332 — a gap of 0.039, 1.5 standard deviations from the MLB norm over 121 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
Pitching242026-07-11Four-Seam Fastball played up through SI/FC tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202622.2% 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