Mithrandir Metrics
Player Tampa Bay Rays Refreshed Jun 14 06:00 AM ET
Player profile / Tampa Bay Rays

Ben Williamson

2B · Bats/Throws R/R · 6' 0", 210 lb · Age 25

Cards
0
Modules
0
Live Δ
yes
Club Tampa Bay Rays Position 2B Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Swing Sim Projections
PARHHRSBAVGOBPSLGOPS
2025295367015.253.294.310.604
2026167233815.255.331.336.667
2 Seasons46259108210.254.307.319.626
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.

2026-06-14
36
Offense
percentile
Offense9 metrics
40
Defense3 metrics
38
Speed2 metrics
75
Plate skills11 metrics
37
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-14
xwOBA preseason0.294
xwOBA current pace0.300
xwOBA rolling p500.297
Observed weight45%
xwOBA
0.267 0.281 0.297 0.312 0.326
wOBA
0.306 0.328 0.352 0.375 0.397
ISO
0.066 0.086 0.109 0.131 0.152
K%
16.7% 18.2% 19.9% 21.6% 23.2%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-14
Hitting · percentile strip
Barrel%0.5%
3 -26 vs proj
Exit velocity87.9
46
Hard-hit%40.3%
53
xBA0.325
52
xSLG0.430
23
xwOBA0.300
40
BB%9.8%
64 +48 vs proj
Bat speed67.5
24
K%20.8%
57
Defense · percentile strip
Arm Strength88.0 · 2B
67
Outs Above Avg-2.0 · 2B
16
Range Runs-1.4 · 2B
30
Baserunning · percentile strip
Base Running Runs1.0 · 2B
75
Sprint Speed28.2 · 2B
75
SB Success Rate75.0% · 2B
Small sample
Mithrandir+

Stuff+ and arsenal context

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

2026-06-14
Avoids Bad ChasesST 67.0% · rebadged research
58
Avoids Bad TakesHPT 32.6% · rebadged research
8
Correct Decisions60.8% · rebadged research
10
Mithrandir Stuff+80
4
Resists Breaking - horizontalwOBA 0.286 · borderline
48
Resists Breaking - verticalwOBA 0.273 · insufficient sample
70
Resists ChangeupwOBA 0.264 · validated thin sample
85
Resists Cutters + splitterswOBA 0.359 · insufficient sample
9
Resists FastballwOBA 0.330 · validated
69
Resists SinkerwOBA 0.375 · validated
18
SEAGER+ Plate Discipline95
23
Rolling form chart

xwOBA 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 Williamson, Ben · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.312 0.300 2026-06-03: 0.3042026-06-04: 0.3042026-06-05: 0.3032026-06-06: 0.3032026-06-07: 0.3032026-06-08: 0.3052026-06-09: 0.3052026-06-10: 0.2972026-06-11: 0.3022026-06-12: 0.2982026-06-13: 0.2982026-06-14: 0.300 2026-06-03 2026-06-14 xwOBA 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.

1Pitches 2026Season 100%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 Swing Zone Profile Williamson, Ben · Aggregate zone metrics; not pitch-by-pitch locations Zone: 47%47%Chase: 30%30%Whiff: 16%16%Zone contact: 93%93%Contact: 84%84%Hard hit: 40%40% 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 Williamson, Ben · 2026 arsenal snapshot Slider: 100.0% SL100% · 53 mphprimary pitch SL 100% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Williamson, Ben · 2026 arsenal snapshot 21″42″63″84″ Slider: 100% usage, 1″ horizontal break, 77″ drop, 52.9 mphSL53 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 100.0% 7 82 limited sample
Method note

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

Reference layer

Current snapshot

Age25
Height6' 0"
Weight210 lb
Debut2025-04-15
Live layer

Delta / regression

xwOBA Δ-0.013
wOBA Δ+0.038

negative regression

Regression watch

Running hot. Expect some cooling.

-1.5σ gap
wOBA (actual)0.352
xwOBA (deserved)0.300

Williamson’s wOBA sits at 0.352, but the quality of contact underneath says it should be 0.300 — a gap of 0.052, -1.5 standard deviations from the MLB norm over 183 PA. 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
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

Hitter Projections 20260.313 xwOBA | 6 HRProjection
2026-04-17 @ PIT0 HR | 0 RBI / 5 Ch | 0 E0-3 | BB, K
2026-04-15 @ CWS0 HR | 0 RBI / 0 Ch | 0 E0-1
2026-04-14 @ CWS0 HR | 3 RBI / 3 Ch | 0 E2-3 | 2 2B, BB, K
2026-04-12 vs NYY0 HR | 0 RBI / 1 Ch | 0 E1-1
2026-04-11 vs NYY0 HR | 0 RBI / 1 Ch | 0 E0-4 | K