Mithrandir Metrics
Player Cincinnati Reds Refreshed Jun 14 06:00 AM ET
Player profile / Cincinnati Reds

Pierce Johnson

P · Bats/Throws R/R · 6' 2", 202 lb · Age 35

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

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024663.67580256.1671.30
2025333.05650159.0591.20
2026213.27240122.0201.23
9 Seasons23253.76354217337.23991.32
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
39
Pitching
percentile
Pitching9 metrics
37
Arsenal3 metrics
50
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 preseason3.83
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.

2026-06-14
Pitching · percentile strip
WHIP1.30
50
ERA3.27
65
BB%9.4%
42
K%19.8%
31 -31 vs proj
xwOBA allowed0.381
5 -39 vs proj
Barrel allowed17.8%
1 -41 vs proj
Fastball velo95.1
63
Hard-hit allowed41.1%
40
Whiff%21.4%
36 -22 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-06-14
Curveball Stuff+104
86
Fastball Stuff+96
16
Mithrandir Stuff+102
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 0.381 2026-06-03: 0.3812026-06-04: 0.3812026-06-05: 0.3812026-06-06: 0.3812026-06-07: 0.3812026-06-08: 0.3812026-06-09: 0.3812026-06-10: 0.3812026-06-11: 0.3812026-06-12: 0.3812026-06-13: 0.3812026-06-14: 0.381 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.

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.

Watch the pitches in 3D →

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% CU65% · 86 mphprimary pitch 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 12″24″36″48″ Curveball: 65% usage, 0″ horizontal break, 42″ drop, 86.0 mphCU86 mph4-Seam Fastball: 34% usage, 2″ horizontal break, 14″ drop, 95.1 mphFF95 mphCutter: 1% usage, 0″ horizontal break, 21″ drop, 92.9 mphFC93 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
CB 66.4% 241 104 qualified
FB 33.6% 122 96 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-0.72
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 | 3.99 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