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

Cionel Pérez

P · Bats/Throws R/L · 6' 0", 175 lb · Age 30

Cards
2
Modules
1
Live Δ
yes
Club New York Mets Position P Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Pitch Lab Projections
WLERAGGSSVIPSOWHIP
2024204.53620253.2461.40
2025008.31190021.2212.12
2026434.76402045.1441.46
9 Seasons1994.3029726282.12621.48
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
38
Pitching
percentile
Pitching9 metrics
36
Arsenal5 metrics
53
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 preseason3.98
ERA current pace4.87
ERA rolling p504.39
Observed weight46%
ERA
2.38 3.33 4.39 5.45 6.40
FIP
2.96 3.54 4.18 4.82 5.40
K%
18.2% 20.2% 22.5% 24.7% 26.8%
BB%
7.1% 8.6% 10.2% 11.7% 13.2%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Pitching · percentile strip
WHIP1.40
35
ERA4.87
29
BB%8.9%
50 +17 vs proj
K%23.2%
59
xwOBA allowed0.346
17 -49 vs proj
Barrel allowed11.7%
5 -79 vs proj
Fastball velo96.6
82
Hard-hit allowed48.9%
2
Whiff%22.1%
47
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
Curveball Stuff+104
80
Fastball Stuff+98
22
Mithrandir Stuff+103
59
Sinker Stuff+103
52
Slider Stuff+102
54
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 Pérez, Cionel · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.346 2026-09-13: 0.3462026-09-14: 0.3462026-09-18: 0.3462026-09-19: 0.3462026-09-20: 0.3462026-09-21: 0.3482026-09-22: 0.3482026-09-23: 0.3482026-09-24: 0.3462026-09-25: 0.3462026-09-26: 0.3462026-09-27: 0.346 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.

4Pitches 2026Season 33%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 Pérez, Cionel · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 47%47%Whiff: 22%22%Called strike: 17%17%First pitch strike: 47%47%Hard hit allowed: 49%49% 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 Pérez, Cionel · 2026 arsenal snapshot Slurve: 32.7%Sinker: 29.3%4-Seam Fastball: 20.8%Curveball: 17.3% SV33% · 86 mphprimary pitch SV 33%SI 29%FF 21%CU 17% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Pérez, Cionel · 2026 arsenal snapshot 12″24″36″48″ Slurve: 33% usage, 4″ horizontal break, 41″ drop, 85.6 mphSV86 mphSinker: 29% usage, 6″ horizontal break, 23″ drop, 96.5 mphSI97 mph4-Seam Fastball: 21% usage, 3″ horizontal break, 15″ drop, 96.7 mphFF97 mphCurveball: 17% usage, 3″ horizontal break, 47″ drop, 85.5 mphCU86 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 29.5% 122 103 limited sample
CB 25.7% 106 104 limited sample
SL 24.7% 102 102 limited sample
FB 20.1% 83 98 limited sample
Method note

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

Reference layer

Current snapshot

Age30
Height6' 0"
Weight175 lb
Debut2018-07-11
Live layer

Delta / regression

ERA Δ+0.69
K% Δ+0.004

negative regression

Regression watch

Running hot. Expect some cooling.

-0.0σ gap
wOBA-against (actual)0.346
xwOBA-against (deserved)0.346

Pérez’s wOBA-against sits at 0.346, but the quality of contact underneath says it should be 0.346 — a gap of 0.001, -0.0 standard deviations from the MLB norm over 46 IP. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Pitching22026-07-07Run prevention outpaced the underlying contact signals
Projection links / recent games

Available detail

Pitcher Projections 202622.8% K | 4.18 ERAProjection
2026-04-14 @ PIT0 ER / 0 K1.0 IP
2026-04-11 @ MIL0 ER / 1 K1.0 IP
2026-04-08 vs STL1 ER / 1 K1.0 IP
2026-04-06 vs STL0 ER / 0 K1.0 IP
2026-04-05 vs LAD4 ER / 0 K0.0 IP