Mithrandir Metrics
Player Texas Rangers Refreshed Jun 14 06:00 AM ET
Player profile / Texas Rangers

Jakob Junis

P · Bats/Throws R/R · 6' 3", 238 lb · Age 33

Cards
1
Modules
1
Live Δ
yes
Club Texas Rangers Position P Roster Active Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024402.69246167.0510.85
2025412.97570066.2551.23
2026111.84251429.1210.82
10 Seasons47474.272741176876.17891.27
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.

2026-06-14
81
Pitching
percentile
Pitching9 metrics
69
Arsenal5 metrics
72
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
ERA preseason3.73
ERA current pace1.57
ERA rolling p503.04
Observed weight32%
ERA
1.74 2.36 3.04 3.72 4.34
FIP
2.53 2.99 3.51 4.02 4.49
K%
16.0% 18.3% 20.8% 23.4% 25.6%
BB%
3.4% 4.4% 5.6% 6.8% 7.9%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-14
Pitching · percentile strip
WHIP0.74
98
ERA1.57
97
BB%5.3%
92
K%21.2%
40
xwOBA allowed0.285
77 +39 vs proj
Barrel allowed3.8%
91 +48 vs proj
Fastball velo91.9
15
Hard-hit allowed31.2%
91
Whiff%18.8%
18
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
Changeup Stuff+110
92
Fastball Stuff+98
23
Mithrandir Stuff+107
86
Sinker Stuff+104
67
Slider Stuff+109
91
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 Junis, Jakob · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 0.285 2026-06-03: 0.2882026-06-04: 0.2802026-06-05: 0.2802026-06-06: 0.2802026-06-07: 0.2802026-06-08: 0.2802026-06-09: 0.2802026-06-10: 0.2802026-06-11: 0.2802026-06-12: 0.2852026-06-13: 0.2852026-06-14: 0.285 2026-06-03 2026-06-14 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.

4Pitches 2026Season 42%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 Junis, Jakob · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 54%54%Whiff: 19%19%Called strike: 22%22%First pitch strike: 53%53%Hard hit allowed: 31%31% 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 Junis, Jakob · 2026 arsenal snapshot Slider: 41.8%Changeup: 22.1%Sinker: 19.4%4-Seam Fastball: 16.7% SL42% · 82 mphprimary pitch SL 42%CH 22%SI 19%FF 17% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Junis, Jakob · 2026 arsenal snapshot 12″24″36″48″ Slider: 42% usage, 4″ horizontal break, 42″ drop, 81.8 mphSL82 mphChangeup: 22% usage, 7″ horizontal break, 35″ drop, 86.5 mphCH87 mphSinker: 19% usage, 3″ horizontal break, 26″ drop, 91.7 mphSI92 mph4-Seam Fastball: 17% usage, 0″ horizontal break, 19″ drop, 92.1 mphFF92 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 42.1% 138 109 limited sample
CH 22.6% 74 110 limited sample
SI 20.1% 66 104 limited sample
FB 15.2% 50 98 limited sample
Method note

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

Reference layer

Current snapshot

Age33
Height6' 3"
Weight238 lb
Debut2017-04-12
Live layer

Delta / regression

ERA Δ-2.50
K% Δ+0.021
Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching12026-05-11Slider played up through SL/SI tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202619.1% K | 4.07 ERAProjection
2026-05-20 @ COL0 ER / 0 K1.0 IP
2026-04-12 @ LAD0 ER / 2 K1.0 IP
2026-04-07 vs SEA0 ER / 0 K1.0 IP
2026-04-06 vs SEA0 ER / 0 K1.0 IP
2026-04-03 vs CIN0 ER / 1 K1.0 IP