Mithrandir Metrics
Player Boston Red Sox Refreshed Jul 18 06:00 AM ET
Player profile / Boston Red Sox

Johan Oviedo

P · Bats/Throws R/R · 6' 6", 275 lb · Age 28

Cards
5
Modules
1
Live Δ
--
Club Boston Red Sox Position P Roster Injured 60-Day Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20239144.3132320177.21581.37
2025213.5799040.1421.21
2026009.821003.231.91
6 Seasons15264.2982670364.23241.38
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.

2026-07-18
27
Pitching
percentile
Arsenal5 metrics
27
Rolling projection

Preseason / current pace / Bayesian update

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

2026-07-18
ERA preseason4.06
ERA current pace9.82
ERA rolling p504.85
Observed weight14%
ERA
3.51 4.14 4.85 5.55 6.19
FIP
3.85 4.27 4.74 5.21 5.64
K%
17.8% 20.1% 22.6% 25.2% 27.5%
BB%
7.2% 8.6% 10.0% 11.5% 12.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-07-18
Mithrandir+

Stuff+ and arsenal context

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

2026-07-18
Curveball Stuff+99
14
Fastball Stuff+100
31
Mithrandir Stuff+99
25
Sinker Stuff+101
43
Slider Stuff+97
20
Rolling form chart

xwOBA allowed snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

0 snapshots
No chart yet

No Live State xwOBA snapshots are available for this player.

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 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 Oviedo, Johan · Aggregate zone metrics; not pitch-by-pitch locations Edge: 34%34%Zone: 44%44%Whiff: 23%23%Called strike: 12%12%First pitch strike: 34%34%Hard hit allowed: 62%62% 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 Oviedo, Johan · 2026 arsenal snapshot 4-Seam Fastball: 36.5%Slider: 24.4%Curveball: 22.4%Sinker: 13.5%Cutter: 3.2% FF37% · 93 mphprimary pitch FF 37%SL 24%CU 22%SI 13%FC 3% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Oviedo, Johan · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 37% usage, 0″ horizontal break, 18″ drop, 93.0 mphFF93 mphSlider: 24% usage, 1″ horizontal break, 40″ drop, 82.9 mphSL83 mphCurveball: 22% usage, 1″ horizontal break, 50″ drop, 76.0 mphCU76 mphSinker: 13% usage, 10″ horizontal break, 25″ drop, 92.1 mphSI92 mphCutter: 3% usage, 0″ horizontal break, 30″ drop, 86.3 mphFC86 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 34.7% 25 100 limited sample
CB 25.0% 18 99 limited sample
SI 19.4% 14 101 limited sample
SL 19.4% 14 97 limited sample
FC 1.4% 1 119 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' 6"
Weight275 lb
Debut2020-08-19
Live layer

Delta / regression

No Live State delta is available for this profile yet.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching52026-03-234-Seam Fastball played up through FF/SL tunnel quality
Projection links / recent games

Available detail

2026-03-30 @ HOU4 ER / 3 K3.2 IP