Mithrandir Metrics
Player Colorado Rockies Refreshed Sep 26 06:00 AM ET
Player profile / Colorado Rockies

Tanner Gordon

P · Bats/Throws L/R · 6' 5", 220 lb · Age 28

Cards
13
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
2024068.6588034.1261.72
2025686.331515075.1621.50
2026166.6824120103.2851.66
3 Seasons7206.8847350213.11731.61
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.

2026-09-26
31
Pitching
percentile
Pitching9 metrics
25
Arsenal6 metrics
54
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-26
ERA preseason4.47
ERA current pace6.01
ERA rolling p505.50
Observed weight67%
ERA
3.99 4.71 5.50 6.30 7.02
FIP
3.81 4.22 4.67 5.13 5.54
K%
15.7% 16.8% 18.1% 19.3% 20.5%
BB%
4.0% 4.6% 5.2% 5.8% 6.3%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-26
Pitching · percentile strip
WHIP1.65
9
ERA6.01
11
BB%5.1%
95
K%18.2%
23
xwOBA allowed0.345
17
Barrel allowed11.0%
8 -22 vs proj
Fastball velo92.6
23
Hard-hit allowed43.2%
18
Whiff%19.3%
22
Mithrandir+

Stuff+ and arsenal context

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

2026-09-26
Changeup Stuff+105
76
Fastball Stuff+104
64
Mithrandir Stuff+103
59
Slider Stuff+104
66
Curveball Stuff+102
43
Sinker Stuff+97
19
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 Gordon, Tanner · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.345 2026-09-12: 0.3232026-09-13: 0.3282026-09-14: 0.3282026-09-18: 0.3352026-09-19: 0.3352026-09-20: 0.3352026-09-21: 0.3352026-09-22: 0.3352026-09-23: 0.3352026-09-24: 0.3352026-09-25: 0.3352026-09-26: 0.345 2026-09-12 2026-09-26 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 43%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 Gordon, Tanner · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 52%52%Whiff: 19%19%Called strike: 15%15%First pitch strike: 49%49%Hard hit allowed: 43%43% 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 Gordon, Tanner · 2026 arsenal snapshot 4-Seam Fastball: 42.9%Changeup: 21.9%Slider: 21.0%Curveball: 9.6%Sinker: 2.6%Cutter: 2.0% FF43% · 93 mphprimary pitch FF 43%CH 22%SL 21%CU 10%SI 3%FC 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Gordon, Tanner · 2026 arsenal snapshot 12″24″36″48″ 4-Seam Fastball: 43% usage, 1″ horizontal break, 17″ drop, 92.7 mphFF93 mphChangeup: 22% usage, 4″ horizontal break, 30″ drop, 84.5 mphCH85 mphSlider: 21% usage, 0″ horizontal break, 30″ drop, 86.8 mphSL87 mphCurveball: 10% usage, 0″ horizontal break, 43″ drop, 81.3 mphCU81 mphSinker: 3% usage, 7″ horizontal break, 18″ drop, 92.0 mphSI92 mphCutter: 2% usage, 0″ horizontal break, 25″ drop, 89.6 mphFC90 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 39.1% 475 104 qualified
SL 23.1% 281 104 qualified
CH 22.6% 274 105 qualified
CB 10.8% 131 102 limited sample
SI 4.4% 53 97 limited sample
Method note

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

Reference layer

Current snapshot

Age28
Height6' 5"
Weight220 lb
Debut2024-07-07
Live layer

Delta / regression

ERA Δ+0.80
K% Δ-0.012

positive regression

Regression watch

Unlucky so far. Better days ahead.

2.9σ gap
wOBA-against (actual)0.422
xwOBA-against (deserved)0.345

Gordon’s wOBA-against sits at 0.422, but the quality of contact underneath says it should be 0.345 — a gap of 0.077, 2.9 standard deviations from the MLB norm over 107 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
Pitching132026-09-24Four-Seam Fastball played up through FF/CU tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202619.4% K | 5.21 ERAProjection
2026-08-15 @ SF0 ER / 4 K4.0 IP
2026-04-20 vs LAD6 ER / 6 K4.0 IP
2026-04-15 @ HOU0 ER / 4 K4.0 IP