Mithrandir Metrics
Player Colorado Rockies Refreshed Sep 29 06:00 AM ET
Player profile / Colorado Rockies

Ryan Feltner

P · Bats/Throws R/R · 6' 4", 200 lb · Age 30

Cards
21
Modules
1
Live Δ
yes
Club Colorado Rockies Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20243104.4930300162.11381.34
2025024.7566030.1251.48
20267105.4026220123.1921.51
6 Seasons16365.2594890463.03831.45
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.

2026-09-29
22
Pitching
percentile
Pitching9 metrics
33
Arsenal6 metrics
51
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-29
ERA preseason4.04
ERA current pace5.57
ERA rolling p505.13
Observed weight71%
ERA
3.77 4.41 5.13 5.84 6.48
FIP
3.97 4.32 4.71 5.10 5.46
K%
15.7% 16.8% 17.9% 19.1% 20.2%
BB%
8.2% 8.9% 9.6% 10.3% 11.0%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-29
Pitching · percentile strip
WHIP1.53
18
ERA5.57
16
BB%9.9%
38
K%16.6%
13 -30 vs proj
xwOBA allowed0.337
24 -16 vs proj
Barrel allowed9.2%
23 -33 vs proj
Fastball velo94.6
53
Hard-hit allowed36.9%
62
Whiff%21.9%
45
Mithrandir+

Stuff+ and arsenal context

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

2026-09-29
Changeup Stuff+100
38
Fastball Stuff+101
45
Mithrandir Stuff+102
45
Slider Stuff+104
73
Curveball Stuff+105
82
Sinker Stuff+98
22
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 Feltner, Ryan · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.337 2026-09-18: 0.3412026-09-19: 0.3412026-09-20: 0.3412026-09-21: 0.3392026-09-22: 0.3392026-09-23: 0.3392026-09-24: 0.3392026-09-25: 0.3392026-09-26: 0.3392026-09-27: 0.3372026-09-28: 0.3372026-09-29: 0.337 2026-09-18 2026-09-29 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 28%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 Feltner, Ryan · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 50%50%Whiff: 22%22%Called strike: 15%15%First pitch strike: 46%46%Hard hit allowed: 37%37% 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 Feltner, Ryan · 2026 arsenal snapshot 4-Seam Fastball: 28.4%Slider: 23.0%Changeup: 18.3%Sinker: 14.2%Sweeper: 10.4%Curveball: 5.7% FF28% · 95 mphprimary pitch FF 28%SL 23%CH 18%SI 14%ST 10%CU 6% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Feltner, Ryan · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 28% usage, 2″ horizontal break, 17″ drop, 94.8 mphFF95 mphSlider: 23% usage, 0″ horizontal break, 28″ drop, 89.1 mphSL89 mphChangeup: 18% usage, 3″ horizontal break, 32″ drop, 85.1 mphCH85 mphSinker: 14% usage, 8″ horizontal break, 23″ drop, 94.2 mphSI94 mphSweeper: 10% usage, 6″ horizontal break, 43″ drop, 82.0 mphST82 mphCurveball: 6% usage, 3″ horizontal break, 51″ drop, 79.5 mphCU79 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 30.1% 321 104 qualified
FB 27.6% 295 101 qualified
CH 20.8% 222 100 qualified
SI 14.0% 150 98 limited sample
CB 7.5% 80 105 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' 4"
Weight200 lb
Debut2021-09-05
Live layer

Delta / regression

ERA Δ+1.17
K% Δ-0.046

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.8σ gap
wOBA-against (actual)0.384
xwOBA-against (deserved)0.337

Feltner’s wOBA-against sits at 0.384, but the quality of contact underneath says it should be 0.337 — a gap of 0.047, 1.8 standard deviations from the MLB norm over 129 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
Pitching212026-09-10Four-Seam Fastball played up through FF/CH tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202621.2% K | 4.40 ERAProjection
2026-04-11 @ SD6 ER / 4 K4.0 IP
2026-04-06 vs HOU4 ER / 1 K5.1 IP
2026-03-31 @ TOR0 ER / 4 K3.0 IP