Mithrandir Metrics
Player Atlanta Braves Refreshed Jun 1 06:00 AM ET
Player profile / Atlanta Braves

Grant Holmes

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

Cards
14
Modules
1
Live Δ
yes
Club Atlanta Braves 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 preseason3.52
ERA current pace3.78
ERA rolling p503.65
Observed weight52%
ERA
2.70 3.15 3.65 4.16 4.61
FIP
3.96 4.25 4.58 4.90 5.20
K%
19.6% 21.0% 22.6% 24.1% 25.5%
BB%
7.7% 8.5% 9.4% 10.3% 11.2%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%10.6%
27 -21 vs proj
Barrel allowed9.5%
28
Fastball velo94.2
48
Hard-hit allowed45.8%
13
K%21.5%
44
Whiff%26.9%
77
xwOBA allowed0.327
41
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+99
30
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 Holmes, Grant · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.3342026-05-19: 0.3242026-05-21: 0.3242026-05-23: 0.3242026-05-24: 0.3232026-05-25: 0.3232026-05-26: 0.3232026-05-28: 0.3232026-05-29: 0.3232026-05-30: 0.3232026-05-31: 0.3272026-06-01: 0.327 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 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 Holmes, Grant · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 45%45%Whiff: 27%27%Called strike: 14%14%First pitch strike: 43%43%Hard hit allowed: 46%46% 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 Holmes, Grant · 2026 arsenal snapshot Slider: 36.6%4-Seam Fastball: 34.1%Curveball: 10.8%Sinker: 7.3%Changeup: 5.9%Cutter: 5.4% MIX SL 37%FF 34%CU 11%SI 7%CH 6%FC 5% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Holmes, Grant · 2026 arsenal snapshot SL: HB 0.0, IVB 3.4SLFF: HB -0.1, IVB 1.3FFCU: HB 0.1, IVB 4.0CUSI: HB 0.9, IVB 2.0SICH: HB -0.8, IVB 2.6CHFC: HB -0.0, IVB 1.8FC horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 38.3% 317 95 qualified
FB 35.0% 290 103 qualified
CB 10.3% 85 102 limited sample
SI 6.6% 55 103 limited sample
CH 5.0% 41 90 limited sample
FC 4.8% 40 104 limited sample
Method note

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

Reference layer

Current snapshot

Age30
Height6' 0"
Weight226 lb
Debut2024-06-16
Live layer

Delta / regression

ERA Δ-0.27
K% Δ-0.005

positive regression

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching142026-05-23Slider played up through SL/FF tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202622.0% K | 4.05 ERAProjection
2026-04-13 vs MIA3 ER / 3 K4.0 IP
2026-04-08 @ LAA2 ER / 6 K6.2 IP
2026-04-03 @ AZ0 ER / 4 K6.0 IP
2026-03-29 vs KC3 ER / 4 K5.0 IP