Mithrandir Metrics
Player Seattle Mariners Refreshed Jun 15 06:00 AM ET
Player profile / Seattle Mariners

Emerson Hancock

P · Bats/Throws R/R · 6' 4", 213 lb · Age 27

Cards
13
Modules
1
Live Δ
yes
Club Seattle Mariners Position P Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024444.751212060.2391.34
2025454.902216090.0641.38
2026533.281414079.2751.02
4 Seasons13124.3151450242.11841.25
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.

2026-06-15
72
Pitching
percentile
Pitching9 metrics
54
Arsenal7 metrics
46
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-15
ERA preseason3.98
ERA current pace2.74
ERA rolling p503.28
Observed weight57%
ERA
2.15 2.69 3.28 3.87 4.41
FIP
3.15 3.54 3.98 4.42 4.81
K%
19.4% 20.7% 22.1% 23.5% 24.8%
BB%
5.0% 5.6% 6.4% 7.1% 7.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-15
Pitching · percentile strip
WHIP1.02
88
ERA2.74
77
BB%5.4%
91 +24 vs proj
K%24.7%
65 +44 vs proj
xwOBA allowed0.327
37
Barrel allowed10.4%
21 -23 vs proj
Fastball velo95.0
61
Hard-hit allowed45.5%
13
Whiff%21.3%
36
Mithrandir+

Stuff+ and arsenal context

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

2026-06-15
Fastball Stuff+109
92
Mithrandir Stuff+107
85
Sinker Stuff+114
100
Slider Stuff+94
10
Changeup Stuff+99
25
Curveball Stuff+97
2
Cutter Stuff+96
9
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 Hancock, Emerson · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 0.327 2026-06-04: 0.3212026-06-05: 0.3212026-06-06: 0.3212026-06-07: 0.3212026-06-08: 0.3212026-06-09: 0.3212026-06-10: 0.3272026-06-11: 0.3272026-06-12: 0.3272026-06-13: 0.3272026-06-14: 0.3272026-06-15: 0.327 2026-06-04 2026-06-15 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 37%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 Hancock, Emerson · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 52%52%Whiff: 21%21%Called strike: 13%13%First pitch strike: 53%53%Hard hit allowed: 45%45% 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 Hancock, Emerson · 2026 arsenal snapshot 4-Seam Fastball: 36.8%Sinker: 24.1%Sweeper: 19.4%Cutter: 12.4%Changeup: 5.5%Curveball: 1.8% FF37% · 95 mphprimary pitch FF 37%SI 24%ST 19%FC 12%CH 5%CU 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Hancock, Emerson · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 37% usage, 5″ horizontal break, 20″ drop, 95.2 mphFF95 mphSinker: 24% usage, 6″ horizontal break, 30″ drop, 94.7 mphSI95 mphSweeper: 19% usage, 5″ horizontal break, 43″ drop, 77.4 mphST77 mphCutter: 12% usage, 3″ horizontal break, 34″ drop, 85.4 mphFC85 mphChangeup: 5% usage, 13″ horizontal break, 36″ drop, 87.2 mphCH87 mphCurveball: 2% usage, 13″ horizontal break, 55″ drop, 75.8 mphCU76 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 37.8% 414 109 qualified
SI 22.7% 249 114 qualified
SL 19.8% 217 94 qualified
FC 12.2% 134 96 limited sample
CH 5.5% 60 99 limited sample
CB 2.0% 22 97 limited sample
Method note

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

Reference layer

Current snapshot

Age27
Height6' 4"
Weight213 lb
Debut2023-08-09
Live layer

Delta / regression

ERA Δ-1.82
K% Δ+0.064

negative regression

Regression watch

Running hot. Expect some cooling.

-1.0σ gap
wOBA-against (actual)0.299
xwOBA-against (deserved)0.327

Hancock’s wOBA-against sits at 0.299, but the quality of contact underneath says it should be 0.327 — a gap of 0.028, -1.0 standard deviations from the MLB norm over 79 IP. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching132026-05-26Run prevention outpaced the underlying contact signals
Projection links / recent games

Available detail

Pitcher Projections 202618.2% K | 4.56 ERAProjection
2026-05-20 vs CWS2 ER / 4 K5.0 IP
2026-04-20 vs ATH3 ER / 3 K5.0 IP
2026-04-15 @ SD2 ER / 6 K6.0 IP
2026-04-04 @ LAA1 ER / 5 K6.2 IP
2026-03-29 vs CLE0 ER / 9 K6.0 IP