Mithrandir Metrics
Player Colorado Rockies Refreshed Sep 3 06:00 AM ET
Player profile / Colorado Rockies

Tanner Gordon

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

Cards
10
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
2026145.18208088.2721.40
3 Seasons7186.2243310198.11601.49
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.

2026-09-03
45
Pitching
percentile
Pitching9 metrics
34
Arsenal6 metrics
58
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-03
ERA preseason4.47
ERA current pace5.18
ERA rolling p504.91
Observed weight62%
ERA
3.44 4.14 4.91 5.69 6.39
FIP
3.63 4.03 4.48 4.92 5.32
K%
16.0% 17.2% 18.6% 20.0% 21.2%
BB%
3.4% 4.0% 4.6% 5.2% 5.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-03
Pitching · percentile strip
WHIP1.40
36
ERA5.18
23
BB%4.2%
98
K%19.0%
28
xwOBA allowed0.323
38
Barrel allowed9.9%
18
Fastball velo92.7
23
Hard-hit allowed42.4%
22
Whiff%19.2%
21
Mithrandir+

Stuff+ and arsenal context

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

2026-09-03
Changeup Stuff+107
86
Fastball Stuff+105
66
Mithrandir Stuff+104
66
Slider Stuff+104
69
Curveball Stuff+102
39
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 0.323 2026-08-23: 0.3372026-08-24: 0.3372026-08-25: 0.3332026-08-26: 0.3332026-08-27: 0.3232026-08-28: 0.3232026-08-29: 0.3232026-08-30: 0.3232026-08-31: 0.3232026-09-01: 0.3232026-09-02: 0.3232026-09-03: 0.323 2026-08-23 2026-09-03 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.

5Pitches 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: 54%54%Whiff: 19%19%Called strike: 16%16%First pitch strike: 48%48%Hard hit allowed: 42%42% 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: 43.3%Slider: 22.7%Changeup: 21.7%Curveball: 9.0%Sinker: 3.2% FF43% · 93 mphprimary pitch FF 43%SL 23%CH 22%CU 9%SI 3% 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, 2″ horizontal break, 16″ drop, 92.8 mphFF93 mphSlider: 23% usage, 0″ horizontal break, 30″ drop, 86.9 mphSL87 mphChangeup: 22% usage, 4″ horizontal break, 29″ drop, 84.6 mphCH85 mphCurveball: 9% usage, 0″ horizontal break, 44″ drop, 81.1 mphCU81 mphSinker: 3% usage, 7″ horizontal break, 18″ drop, 92.0 mphSI92 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 38.6% 371 105 qualified
SL 24.6% 236 104 qualified
CH 22.8% 219 107 qualified
CB 8.5% 82 102 limited sample
SI 5.5% 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-0.03
K% Δ-0.004

positive regression

Regression watch

Unlucky so far. Better days ahead.

2.3σ gap
wOBA-against (actual)0.388
xwOBA-against (deserved)0.323

Gordon’s wOBA-against sits at 0.388, but the quality of contact underneath says it should be 0.323 — a gap of 0.065, 2.3 standard deviations from the MLB norm over 92 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
Pitching102026-08-31Four-Seam Fastball played up through FF/CH 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