Mithrandir Metrics
Player Tampa Bay Rays Refreshed Jun 1 06:00 AM ET
Player profile / Tampa Bay Rays

Ian Seymour

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

Cards
0
Modules
0
Live Δ
yes
Club Tampa Bay Rays 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 preseason4.87
ERA current pace4.50
ERA rolling p504.73
Observed weight36%
ERA
3.55 4.11 4.73 5.36 5.92
FIP
2.95 3.34 3.79 4.23 4.63
K%
21.5% 23.2% 25.0% 26.8% 28.5%
BB%
6.1% 7.1% 8.2% 9.3% 10.2%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%9.5%
37 -26 vs proj
Barrel allowed9.2%
33 -17 vs proj
Fastball velo91.1
9
Hard-hit allowed35.6%
74
K%25.5%
73 +19 vs proj
Whiff%26.8%
76 +25 vs proj
xwOBA allowed0.306
58
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+102
53
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 Seymour, Ian · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.3302026-05-19: 0.3312026-05-21: 0.3202026-05-23: 0.3102026-05-24: 0.3102026-05-25: 0.3102026-05-26: 0.3042026-05-28: 0.3042026-05-29: 0.3042026-05-30: 0.3042026-05-31: 0.3042026-06-01: 0.306 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 34%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 Seymour, Ian · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 47%47%Whiff: 27%27%Called strike: 18%18%First pitch strike: 55%55%Hard hit allowed: 36%36% 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 Seymour, Ian · 2026 arsenal snapshot Changeup: 33.5%4-Seam Fastball: 22.2%Sweeper: 18.8%Sinker: 16.9%Cutter: 4.3%Slider: 4.3% MIX CH 34%FF 22%ST 19%SI 17%FC 4%SL 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Seymour, Ian · 2026 arsenal snapshot CH: HB -0.5, IVB 2.7CHFF: HB -0.3, IVB 1.3FFST: HB -0.0, IVB 2.7STSI: HB 0.3, IVB 2.0SIFC: HB 0.1, IVB 2.2FCSL: HB -0.4, IVB 2.6SL horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CH 33.4% 147 103 limited sample
SL 24.5% 108 105 limited sample
FB 20.9% 92 100 limited sample
SI 18.4% 81 103 limited sample
FC 2.7% 12 101 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' 0"
Weight215 lb
Debut2025-06-09
Live layer

Delta / regression

ERA Δ+0.51
K% Δ+0.024

positive regression

Mithrandir coverage

Module shelf

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

Available detail

Pitcher Projections 202623.1% K | 3.99 ERAProjection
2026-05-20 vs BAL0 ER / 0 K1.0 IP
2026-04-15 @ CWS3 ER / 1 K1.0 IP
2026-04-11 vs NYY0 ER / 3 K1.2 IP
2026-04-06 vs CHC1 ER / 1 K1.1 IP
2026-04-01 @ MIL0 ER / 2 K2.0 IP