Mithrandir Metrics
Player Cincinnati Reds Refreshed Jun 1 06:00 AM ET
Player profile / Cincinnati Reds

Pierce Johnson

P profile with live context, projection links, and Mithrandir card history when available.

Cards
0
Modules
0
Live Δ
yes
Club Cincinnati Reds Position P Roster Injured 15-Day Status IL-15
Rolling projection

Preseason / current pace / Bayesian update

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

2026-06-01
ERA preseason3.83
ERA current pace3.27
ERA rolling p503.66
Observed weight31%
ERA
2.10 2.84 3.66 4.47 5.21
FIP
3.30 3.67 4.08 4.49 4.87
K%
18.4% 20.8% 23.4% 26.0% 28.4%
BB%
6.8% 8.1% 9.6% 11.1% 12.5%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%9.4%
38
Barrel allowed17.8%
1 -39 vs proj
Fastball velo95.1
64
Hard-hit allowed41.1%
39
K%19.8%
30 -31 vs proj
Whiff%21.4%
36 -23 vs proj
xwOBA allowed0.381
5 -38 vs proj
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; missing coverage is shown explicitly.

2026-06-01
Mithrandir Stuff+101
48
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 Johnson, Pierce · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.3972026-05-19: 0.3972026-05-21: 0.3922026-05-23: 0.3922026-05-24: 0.3852026-05-25: 0.3852026-05-26: 0.3852026-05-28: 0.3812026-05-29: 0.3812026-05-30: 0.3812026-05-31: 0.3812026-06-01: 0.381 2026-05-17 2026-06-01 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.

3Pitches 2026Season 65%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 Johnson, Pierce · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 49%49%Whiff: 21%21%Called strike: 19%19%First pitch strike: 49%49%Hard hit allowed: 41%41% 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.

2026
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Johnson, Pierce · 2026 arsenal snapshot Curveball: 64.6%4-Seam Fastball: 34.4%Cutter: 1.0% MIX CU 65%FF 34%FC 1% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Johnson, Pierce · 2026 arsenal snapshot CU: HB -0.0, IVB 3.5CUFF: HB -0.1, IVB 1.2FFFC: HB -0.0, IVB 1.8FC horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CB 66.4% 241 105 qualified
FB 33.6% 122 95 limited sample
Method note

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

Reference layer

Current snapshot

Age35
Height6' 2"
Weight202 lb
Debut2017-05-19
Live layer

Delta / regression

ERA Δ-0.75
K% Δ-0.046
Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

Pitcher Projections 202624.4% K | 4.02 ERAProjection
2026-04-20 @ TB0 ER / 0 K1.0 IP
2026-04-15 vs SF0 ER / 1 K1.0 IP
2026-04-11 vs LAA0 ER / 3 K1.1 IP
2026-04-08 @ MIA0 ER / 1 K1.0 IP
2026-04-07 @ MIA0 ER / 1 K0.2 IP