Mithrandir Metrics
Player Washington Nationals Refreshed Jul 19 06:00 AM ET
Player profile / Washington Nationals

Mitchell Parker

P · Bats/Throws L/L · 6' 4", 239 lb · Age 26

Cards
2
Modules
1
Live Δ
yes
Club Washington Nationals Position P Roster Injured 60-Day Status IL-60
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
20247104.2929290151.01331.30
20259165.6833301164.21031.43
2026336.58220139.2341.49
3 Seasons19295.1984592355.12701.38
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.

2026-07-19
34
Pitching
percentile
Pitching9 metrics
37
Arsenal4 metrics
49
Rolling projection

Preseason / current pace / Bayesian update

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

2026-07-19
ERA preseason4.75
ERA current pace6.58
ERA rolling p505.57
Observed weight45%
ERA
4.41 4.96 5.57 6.18 6.73
FIP
4.40 4.69 5.01 5.33 5.62
K%
16.2% 17.6% 19.2% 20.7% 22.1%
BB%
5.6% 6.4% 7.2% 8.1% 8.9%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-07-19
Pitching · percentile strip
WHIP1.47
23
ERA6.58
6
BB%6.7%
81 +17 vs proj
K%21.5%
44 +32 vs proj
xwOBA allowed0.347
19
Barrel allowed10.1%
19
Fastball velo93.5
34
Hard-hit allowed42.8%
26
Whiff%27.9%
84 +65 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-07-19
Slider Stuff+104
62
Curveball Stuff+103
63
Fastball Stuff+98
24
Mithrandir Stuff+101
45
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 Parker, Mitchell · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 0.347 2026-07-08: 0.3472026-07-09: 0.3472026-07-10: 0.3472026-07-11: 0.3472026-07-12: 0.3472026-07-13: 0.3472026-07-14: 0.3472026-07-15: 0.3472026-07-16: 0.3472026-07-17: 0.3472026-07-18: 0.3472026-07-19: 0.347 2026-07-08 2026-07-19 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.

5Pitches 2026Season 50%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 Parker, Mitchell · Aggregate zone metrics; not pitch-by-pitch locations Edge: 34%34%Zone: 50%50%Whiff: 28%28%Called strike: 16%16%First pitch strike: 49%49%Hard hit allowed: 43%43% 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 Parker, Mitchell · 2026 arsenal snapshot Slider: 49.9%4-Seam Fastball: 33.4%Curveball: 15.8%Split-Finger: 0.7%Pitch Out: 0.1% SL50% · 83 mphprimary pitch SL 50%FF 33%CU 16%FS 1%PO 0% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Parker, Mitchell · 2026 arsenal snapshot 15″30″45″60″ Slider: 50% usage, 1″ horizontal break, 39″ drop, 83.1 mphSL83 mph4-Seam Fastball: 33% usage, 1″ horizontal break, 13″ drop, 93.5 mphFF94 mphCurveball: 16% usage, 6″ horizontal break, 53″ drop, 78.8 mphCU79 mphSplit-Finger: 1% usage, 8″ horizontal break, 33″ drop, 84.0 mphFS84 mphPitch Out: 0% usage, 9″ horizontal break, 14″ drop, 92.0 mphPO92 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 53.3% 245 104 qualified
FB 32.4% 149 98 limited sample
CB 14.3% 66 103 limited sample
Method note

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

Reference layer

Current snapshot

Age26
Height6' 4"
Weight239 lb
Debut2024-04-15
Live layer

Delta / regression

ERA Δ+1.37
K% Δ+0.050

positive regression

Regression watch

Unlucky so far. Better days ahead.

2.5σ gap
wOBA-against (actual)0.430
xwOBA-against (deserved)0.347

Parker’s wOBA-against sits at 0.430, but the quality of contact underneath says it should be 0.347 — a gap of 0.083, 2.5 standard deviations from the MLB norm over 44 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
Pitching22026-03-22Slider played up through SL/FF tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202616.5% K | 5.21 ERAProjection
2026-04-14 @ PIT0 ER / 5 K2.0 IP