Mithrandir Metrics
Player Minnesota Twins Refreshed Oct 20 06:00 AM ET
Player profile / Minnesota Twins

Dean Kremer

P · Bats/Throws R/R · 6' 2", 210 lb · Age 30

Cards
20
Modules
1
Live Δ
yes
Club Minnesota Twins Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20248104.1024240129.21231.24
202511104.1931290171.21421.21
2026554.681717090.1861.14
7 Seasons46454.311431400762.06641.27
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.

2026-10-20
57
Pitching
percentile
Pitching9 metrics
52
Arsenal6 metrics
28
Rolling projection

Preseason / current pace / Bayesian update

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

2026-10-20
ERA preseason4.65
ERA current pace4.68
ERA rolling p504.67
Observed weight61%
ERA
3.67 4.14 4.67 5.20 5.67
FIP
3.92 4.22 4.55 4.88 5.17
K%
20.9% 22.0% 23.2% 24.5% 25.6%
BB%
6.6% 7.3% 8.0% 8.7% 9.4%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-10-20
Pitching · percentile strip
WHIP1.15
79
ERA4.68
33
BB%8.4%
56
K%24.5%
67 +25 vs proj
xwOBA allowed0.313
49 +18 vs proj
Barrel allowed9.8%
16
Fastball velo92.5
20
Hard-hit allowed35.7%
72
Whiff%26.3%
77 +44 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-10-20
Fastball Stuff+105
75
Mithrandir Stuff+100
32
Curveball Stuff+101
33
Cutter Stuff+96
10
Sinker Stuff+97
19
Slider Stuff+87
1
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 Kremer, Dean · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 0.313 2026-10-09: 0.3132026-10-10: 0.3132026-10-11: 0.3132026-10-12: 0.3132026-10-13: 0.3132026-10-14: 0.3132026-10-15: 0.3132026-10-16: 0.3132026-10-17: 0.3132026-10-18: 0.3132026-10-19: 0.3132026-10-20: 0.313 2026-10-09 2026-10-20 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.

8Pitches 2026Season 26%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 Kremer, Dean · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 45%45%Whiff: 26%26%Called strike: 16%16%First pitch strike: 51%51%Hard hit allowed: 36%36% 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 Kremer, Dean · 2026 arsenal snapshot 4-Seam Fastball: 26.4%Split-Finger: 25.4%Slider: 17.6%Sinker: 13.4%Curveball: 12.5%Cutter: 3.6% FF26% · 93 mphprimary pitch FF 26%FS 25%SL 18%SI 13%CU 12%FC 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Kremer, Dean · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 26% usage, 3″ horizontal break, 14″ drop, 92.8 mphFF93 mphSplit-Finger: 25% usage, 6″ horizontal break, 30″ drop, 82.3 mphFS82 mphSlider: 18% usage, 2″ horizontal break, 30″ drop, 87.0 mphSL87 mphSinker: 13% usage, 1″ horizontal break, 20″ drop, 91.9 mphSI92 mphCurveball: 12% usage, 3″ horizontal break, 60″ drop, 76.7 mphCU77 mphCutter: 4% usage, 0″ horizontal break, 18″ drop, 90.5 mphFC91 mphSlurve: 1% usage, 4″ horizontal break, 40″ drop, 83.3 mphSV83 mphUnknown: 0% usage, 10″ horizontal break, 38″ drop, 72.2 mphUN72 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 43.8% 274 105 qualified
FC 22.2% 139 96 limited sample
SI 16.3% 102 97 limited sample
CB 15.5% 97 101 limited sample
SL 2.2% 14 87 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' 2"
Weight210 lb
Debut2020-09-06
Live layer

Delta / regression

ERA Δ+0.45
K% Δ+0.036

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.5σ gap
wOBA-against (actual)0.328
xwOBA-against (deserved)0.313

Kremer’s wOBA-against sits at 0.328, but the quality of contact underneath says it should be 0.313 — a gap of 0.015, 0.5 standard deviations from the MLB norm over 94 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
Pitching202026-09-27Four-Seam Fastball played up through FS/CU tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202620.9% K | 4.23 ERAProjection
2026-04-13 vs AZ2 ER / 9 K5.0 IP