Mithrandir Metrics
Player Atlanta Braves Refreshed Jun 12 06:00 AM ET
Player profile / Atlanta Braves

Didier Fuentes

P · Bats/Throws R/R · 6' 0", 170 lb · Age 20

Cards
3
Modules
1
Live Δ
yes
Club Atlanta Braves Position P Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20250313.8544013.0122.23
2026402.33191127.0301.07
2 Seasons436.08235140.0421.45
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.

2026-06-12
83
Pitching
percentile
Pitching9 metrics
79
Arsenal3 metrics
71
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-12
ERA preseason7.78
ERA current pace2.63
ERA rolling p505.88
Observed weight37%
ERA
3.33 4.54 5.88 7.23 8.44
FIP
2.50 2.99 3.53 4.08 4.57
K%
17.7% 20.4% 23.4% 26.4% 29.1%
BB%
4.9% 6.0% 7.3% 8.5% 9.7%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-12
Pitching · percentile strip
WHIP0.91
95
ERA2.63
78
BB%7.1%
73
K%27.9%
85 +54 vs proj
xwOBA allowed0.270
85 +43 vs proj
Barrel allowed6.9%
62 +23 vs proj
Fastball velo96.9
87
Hard-hit allowed34.5%
78
Whiff%26.1%
73 +25 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-06-12
Fastball Stuff+106
75
Mithrandir Stuff+106
82
Slider Stuff+103
58
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 Fuentes, Didier · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.270 2026-06-01: 0.2842026-06-02: 0.2842026-06-03: 0.2842026-06-04: 0.2842026-06-05: 0.2752026-06-06: 0.2752026-06-07: 0.2752026-06-08: 0.2722026-06-09: 0.2722026-06-10: 0.2722026-06-11: 0.2722026-06-12: 0.270 2026-06-01 2026-06-12 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.

3Pitches 2026Season 65%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 Fuentes, Didier · Aggregate zone metrics; not pitch-by-pitch locations Edge: 39%39%Zone: 50%50%Whiff: 26%26%Called strike: 16%16%First pitch strike: 51%51%Hard hit allowed: 34%34% 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 Fuentes, Didier · 2026 arsenal snapshot 4-Seam Fastball: 64.9%Slider: 26.7%Split-Finger: 8.4% FF65% · 97 mphprimary pitch FF 65%SL 27%FS 8% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Fuentes, Didier · 2026 arsenal snapshot 9″18″27″36″ 4-Seam Fastball: 65% usage, 1″ horizontal break, 14″ drop, 96.9 mphFF97 mphSlider: 27% usage, 0″ horizontal break, 34″ drop, 86.3 mphSL86 mphSplit-Finger: 8% usage, 16″ horizontal break, 28″ drop, 89.2 mphFS89 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 72.2% 286 106 qualified
SL 27.8% 110 103 limited sample
Method note

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

Reference layer

Current snapshot

Age20
Height6' 0"
Weight170 lb
Debut2025-06-20
Live layer

Delta / regression

ERA Δ-3.80
K% Δ+0.081

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.5σ gap
wOBA-against (actual)0.290
xwOBA-against (deserved)0.270

Fuentes’s wOBA-against sits at 0.290, but the quality of contact underneath says it should be 0.270 — a gap of 0.019, 0.5 standard deviations from the MLB norm over 35 IP. The results have been worse than the process deserves; as the sample grows, expect the numbers to climb back toward the underlying level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching32026-04-224-Seam Fastball played up through FF/SL tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202619.8% K | 6.43 ERAProjection
2026-03-29 vs KC1 ER / 4 K4.0 IP