Mithrandir Metrics
Player Chicago Cubs Refreshed Jun 1 06:00 AM ET
Player profile / Chicago Cubs

Ben Brown

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

Cards
6
Modules
1
Live Δ
yes
Club Chicago Cubs 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 preseason4.20
ERA current pace2.02
ERA rolling p503.17
Observed weight47%
ERA
1.98 2.54 3.17 3.80 4.36
FIP
1.79 2.37 3.01 3.65 4.23
K%
22.0% 23.8% 25.7% 27.6% 29.3%
BB%
5.9% 6.7% 7.5% 8.4% 9.1%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%7.9%
63
Barrel allowed7.2%
58 +27 vs proj
Fastball velo96.6
83
Hard-hit allowed43.9%
23
K%26.4%
77
Whiff%26.5%
74
xwOBA allowed0.272
82 +21 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+101
44
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 Brown, Ben · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.2502026-05-19: 0.2502026-05-21: 0.2602026-05-23: 0.2602026-05-24: 0.2602026-05-25: 0.2592026-05-26: 0.2712026-05-28: 0.2712026-05-29: 0.2712026-05-30: 0.2712026-05-31: 0.2712026-06-01: 0.272 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.

4Pitches 2026Season 37%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 Brown, Ben · Aggregate zone metrics; not pitch-by-pitch locations Edge: 35%35%Zone: 48%48%Whiff: 27%27%Called strike: 18%18%First pitch strike: 49%49%Hard hit allowed: 44%44% 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 Brown, Ben · 2026 arsenal snapshot Knuckle Curve: 37.2%4-Seam Fastball: 37.0%Sinker: 19.7%Changeup: 6.1% MIX KC 37%FF 37%SI 20%CH 6% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Brown, Ben · 2026 arsenal snapshot KC: HB 0.0, IVB 3.3KCFF: HB -0.4, IVB 1.1FFSI: HB 1.0, IVB 1.4SICH: HB -0.9, IVB 2.4CH horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 37.4% 253 103 qualified
CB 36.8% 249 102 qualified
SI 19.6% 133 99 limited sample
CH 6.2% 42 100 limited sample
Method note

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

Reference layer

Current snapshot

Age26
Height6' 6"
Weight210 lb
Debut2024-03-30
Live layer

Delta / regression

ERA Δ-2.25
K% Δ+0.019

negative regression

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching62026-05-25Knuckle Curve played up through KC/FF tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202624.5% K | 4.27 ERAProjection
2026-04-15 @ PHI0 ER / 0 K2.0 IP
2026-04-11 vs PIT0 ER / 3 K2.0 IP
2026-04-08 @ TB1 ER / 3 K2.0 IP
2026-04-05 @ CLE2 ER / 0 K2.0 IP
2026-03-31 vs LAA0 ER / 5 K3.1 IP