Mithrandir Metrics
Player Tampa Bay Rays Refreshed Jul 19 06:00 AM ET
Player profile / Tampa Bay Rays

Cam Booser

P · Bats/Throws L/L · 6' 3", 230 lb · Age 34

Cards
1
Modules
1
Live Δ
yes
Club Tampa Bay Rays Position P Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024233.38430142.2431.34
2025245.52390131.0351.52
2026001.42170019.0240.68
3 Seasons473.69990292.21021.26
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.

2026-07-19
96
Pitching
percentile
Pitching9 metrics
80
Arsenal4 metrics
38
Rolling projection

Preseason / current pace / Bayesian update

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

2026-07-19
ERA preseason3.80
ERA current pace1.59
ERA rolling p503.24
Observed weight25%
ERA
1.41 2.28 3.24 4.20 5.07
FIP
2.77 3.31 3.90 4.50 5.04
K%
21.7% 24.3% 27.2% 30.0% 32.6%
BB%
5.7% 7.4% 9.3% 11.2% 12.9%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-07-19
Pitching · percentile strip
WHIP0.74
100
ERA1.59
98
BB%6.2%
86 +53 vs proj
K%34.6%
98 +35 vs proj
xwOBA allowed0.240
99 +54 vs proj
Barrel allowed6.5%
69 +34 vs proj
Fastball velo95.5
68
Hard-hit allowed43.5%
21
Whiff%26.7%
77
Mithrandir+

Stuff+ and arsenal context

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

2026-07-19
Cutter Stuff+107
94
Fastball Stuff+96
16
Mithrandir Stuff+101
38
Slider Stuff+90
4
Rolling form chart

xwOBA allowed snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

7 snapshots
Mithrandir Metrics ROLLING XWOBA LINE Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Rolling xwOBA allowed Booser, Cam · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 0.240 2026-07-13: 0.2312026-07-14: 0.2312026-07-15: 0.2312026-07-16: 0.2312026-07-17: 0.2312026-07-18: 0.2312026-07-19: 0.240 2026-07-13 2026-07-19 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.

4Pitches 2026Season 44%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 Booser, Cam · Aggregate zone metrics; not pitch-by-pitch locations Edge: 34%34%Zone: 52%52%Whiff: 27%27%Called strike: 13%13%First pitch strike: 57%57%Hard hit allowed: 43%43% 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 Booser, Cam · 2026 arsenal snapshot Cutter: 44.3%4-Seam Fastball: 38.6%Sweeper: 13.0%Changeup: 4.1% FC44% · 88 mphprimary pitch FC 44%FF 39%ST 13%CH 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Booser, Cam · 2026 arsenal snapshot 12″24″36″48″ Cutter: 44% usage, 1″ horizontal break, 32″ drop, 87.8 mphFC88 mph4-Seam Fastball: 39% usage, 0″ horizontal break, 14″ drop, 95.5 mphFF96 mphSweeper: 13% usage, 11″ horizontal break, 44″ drop, 81.3 mphST81 mphChangeup: 4% usage, 15″ horizontal break, 31″ drop, 87.5 mphCH88 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 44.6% 41 96 limited sample
FC 43.5% 40 107 limited sample
SL 10.9% 10 90 limited sample
CH 1.1% 1 87 limited sample
Method note

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

Reference layer

Current snapshot

Age34
Height6' 3"
Weight230 lb
Debut2024-04-19
Live layer

Delta / regression

ERA Δ-2.48
K% Δ+0.101
Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching12026-03-24Stuff and strike quality carried the outing
Projection links / recent games

Available detail

Pitcher Projections 202624.5% K | 4.07 ERAProjection
2026-03-24 @ ATL0 ER / 2 K1.0 IP
2026-03-22 @ TOR0 ER / 1 K1.0 IP
2026-03-20 vs BOS0 ER / 1 K1.0 IP
2026-03-11 @ ATL0 ER / 1 K1.0 IP