Mithrandir Metrics
Pitcher projection 2026 Refreshed Aug 31 06:00 AM ET
Pitcher projection / TB · 2026

Booser, Cam

Run-prevention profile built on workable command

Primary
24.1% K%
Range
18.5% to 32.3%
Live Δ
yes
Team TB Archetype Volatile contact Age 34 Status Healthy / active roster
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.

2026-08-31
96
Pitching
percentile
Pitching9 metrics
81
Arsenal4 metrics
50
Rolling projection

Preseason / current pace / Bayesian update

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

2026-08-31
ERA preseason3.80
ERA current pace2.03
ERA rolling p503.16
Observed weight36%
ERA
1.46 2.26 3.16 4.05 4.86
FIP
2.77 3.27 3.82 4.37 4.87
K%
22.4% 24.7% 27.2% 29.7% 31.9%
BB%
5.4% 6.8% 8.5% 10.1% 11.5%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-08-31
Pitching · percentile strip
WHIP0.81
99
ERA2.03
95
BB%5.1%
95 +57 vs proj
K%31.6%
95 +32 vs proj
xwOBA allowed0.247
96 +55 vs proj
Barrel allowed6.0%
74 +43 vs proj
Fastball velo95.7
70
Hard-hit allowed40.5%
35
Whiff%25.2%
67
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; Arsenal Decomposition remains descriptive support under Stuff+.

2026-08-31
Cutter Stuff+103
62
Fastball Stuff+102
47
Mithrandir Stuff+103
58
Slider Stuff+100
34
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
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 Booser, Cam · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.247 2026-08-20: 0.2442026-08-21: 0.2442026-08-22: 0.2442026-08-23: 0.2442026-08-24: 0.2442026-08-25: 0.2482026-08-26: 0.2482026-08-27: 0.2482026-08-28: 0.2482026-08-29: 0.2482026-08-30: 0.2482026-08-31: 0.247 2026-08-20 2026-08-31 xwOBA allowed MITHRANDIR · CHARTS
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: 25%25%Called strike: 14%14%First pitch strike: 50%50%Hard hit allowed: 40%40% 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 Booser, Cam · 2026 arsenal snapshot 4-Seam Fastball: 44.0%Cutter: 43.2%Sweeper: 9.8%Changeup: 3.1% FF44% · 96 mphprimary pitch FF 44%FC 43%ST 10%CH 3% 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″ 4-Seam Fastball: 44% usage, 1″ horizontal break, 14″ drop, 95.7 mphFF96 mphCutter: 43% usage, 1″ horizontal break, 31″ drop, 88.0 mphFC88 mphSweeper: 10% usage, 12″ horizontal break, 44″ drop, 81.5 mphST81 mphChangeup: 3% usage, 15″ horizontal break, 31″ drop, 87.4 mphCH87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 49.8% 105 102 limited sample
FC 40.8% 86 103 limited sample
SL 8.5% 18 100 limited sample
CH 0.9% 2 104 limited sample
Method note

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

Model read

Projection notes

1
templated note
Plays better against lefties right now (0.250 vs 0.278 xwOBA allowed split).
pitcher
2
templated note
Volume stays relief-shaped even when the bat-miss traits are strong.
pitcher
3
templated note
Home park gives the run-prevention profile a small HR cushion.
pitcher
4
templated note
Primary mix entering the season: 4-Seam Fastball 46%, Sweeper 31%, Cutter 21%.
pitcher
Live context

Current-season signal

ERA Δ-2.10
K% Δ+0.075
Sample35.7 IP

positive regression

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings39.0----
Batters Faced173----
K%24.1%18.5% to 32.3%+/- 6.9%
BB%9.9%6.0% to 15.2%+/- 4.6%
Whiff%25.1%20.1% to 32.2%+/- 6.1%
HR/91.160.37 to 2.22+/- 0.93
xwOBA Against0.3190.222 to 0.358+/- 0.068
Barrel% Allowed8.7%4.1% to 13.3%+/- 4.6%
ERA4.201.95 to 6.58+/- 2.32
FIP4.172.51 to 5.38+/- 1.43
WHIP1.3320.972 to 1.683+/- 0.356
Platoon / Shape
vs LHH

150 career BF

xwOBA0.250
K%23.7%
BB%10.5%
Barrel8.6%
vs RHH

207 career BF

xwOBA0.278
K%21.5%
BB%9.7%
Barrel9.2%