Mithrandir Metrics
Player New York Yankees Refreshed Sep 27 06:00 AM ET
Player profile / New York Yankees

John Schreiber

P · Bats/Throws R/R · 6' 2", 224 lb · Age 32

Cards
0
Modules
0
Live Δ
yes
Club New York Yankees Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024433.66590251.2461.32
2025333.80740164.0621.19
2026243.28660260.1401.24
8 Seasons17163.58338214319.13131.24
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.

2026-09-27
46
Pitching
percentile
Pitching9 metrics
49
Arsenal6 metrics
55
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-27
ERA preseason4.01
ERA current pace3.28
ERA rolling p503.63
Observed weight52%
ERA
2.32 2.94 3.63 4.32 4.94
FIP
3.64 3.98 4.36 4.73 5.07
K%
15.7% 17.3% 19.1% 20.9% 22.5%
BB%
7.9% 9.0% 10.1% 11.3% 12.3%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Pitching · percentile strip
WHIP1.30
56
ERA3.28
77
BB%10.6%
30 -20 vs proj
K%16.6%
13 -30 vs proj
xwOBA allowed0.309
55
Barrel allowed5.3%
82 +37 vs proj
Fastball velo93.5
34
Hard-hit allowed37.2%
59
Whiff%21.1%
37
Mithrandir+

Stuff+ and arsenal context

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

2026-09-27
Fastball Stuff+100
37
Mithrandir Stuff+103
61
Changeup Stuff+103
62
Cutter Stuff+102
56
Sinker Stuff+106
81
Slider Stuff+100
34
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 Schreiber, John · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.309 2026-09-13: 0.3172026-09-14: 0.3172026-09-18: 0.3142026-09-19: 0.3142026-09-20: 0.3142026-09-21: 0.3132026-09-22: 0.3132026-09-23: 0.3132026-09-24: 0.3122026-09-25: 0.3122026-09-26: 0.3092026-09-27: 0.309 2026-09-13 2026-09-27 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 28%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 Schreiber, John · Aggregate zone metrics; not pitch-by-pitch locations Edge: 35%35%Zone: 47%47%Whiff: 21%21%Called strike: 18%18%First pitch strike: 50%50%Hard hit allowed: 37%37% 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 Schreiber, John · 2026 arsenal snapshot 4-Seam Fastball: 27.7%Sweeper: 27.0%Sinker: 25.3%Cutter: 12.7%Changeup: 7.3% FF28% · 94 mphprimary pitch FF 28%ST 27%SI 25%FC 13%CH 7% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Schreiber, John · 2026 arsenal snapshot 12″24″36″48″ 4-Seam Fastball: 28% usage, 1″ horizontal break, 21″ drop, 93.8 mphFF94 mphSweeper: 27% usage, 5″ horizontal break, 39″ drop, 82.4 mphST82 mphSinker: 25% usage, 5″ horizontal break, 33″ drop, 93.3 mphSI93 mphCutter: 13% usage, 0″ horizontal break, 29″ drop, 89.5 mphFC90 mphChangeup: 7% usage, 9″ horizontal break, 41″ drop, 86.5 mphCH87 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 29.2% 202 100 qualified
SI 25.6% 177 106 limited sample
SL 24.4% 169 100 limited sample
FC 12.9% 89 102 limited sample
CH 7.9% 55 103 limited sample
Method note

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

Reference layer

Current snapshot

Age32
Height6' 2"
Weight224 lb
Debut2019-08-09
Live layer

Delta / regression

ERA Δ-0.48
K% Δ-0.046

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.4σ gap
wOBA-against (actual)0.352
xwOBA-against (deserved)0.309

Schreiber’s wOBA-against sits at 0.352, but the quality of contact underneath says it should be 0.309 — a gap of 0.043, 1.4 standard deviations from the MLB norm over 62 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
No Mithrandir card history is available for this player yet.
Projection links / recent games

Available detail

Pitcher Projections 202621.2% K | 3.76 ERAProjection
2026-04-20 vs BAL0 ER / 0 K0.2 IP
2026-04-12 vs CWS1 ER / 1 K1.0 IP
2026-04-09 vs CWS0 ER / 0 K0.2 IP
2026-04-07 @ CLE1 ER / 0 K0.1 IP
2026-04-04 vs MIL0 ER / 0 K1.0 IP