Mithrandir Metrics
Player New York Mets Refreshed Sep 5 06:00 AM ET
Player profile / New York Mets

Kodai Senga

P · Bats/Throws L/R · 6' 1", 202 lb · Age 33

Cards
12
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
2024103.381105.190.56
2025763.0222220113.11091.31
2026097.23258556.0651.63
4 Seasons20223.7077605341.03851.31
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.

2026-09-05
22
Pitching
percentile
Pitching9 metrics
33
Arsenal5 metrics
33
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-05
ERA preseason3.98
ERA current pace7.36
ERA rolling p505.78
Observed weight53%
ERA
4.66 5.19 5.78 6.37 6.89
FIP
4.00 4.48 5.02 5.56 6.04
K%
21.3% 22.8% 24.4% 26.1% 27.6%
BB%
10.3% 11.2% 12.2% 13.3% 14.2%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-05
Pitching · percentile strip
WHIP1.60
11
ERA7.36
1
BB%14.3%
6 -26 vs proj
K%25.3%
72
xwOBA allowed0.342
22 -19 vs proj
Barrel allowed12.4%
3 -38 vs proj
Fastball velo95.7
71
Hard-hit allowed39.8%
41
Whiff%25.7%
72
Mithrandir+

Stuff+ and arsenal context

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

2026-09-05
Fastball Stuff+102
47
Mithrandir Stuff+100
30
Cutter Stuff+100
36
Sinker Stuff+92
8
Slider Stuff+101
43
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 Senga, Kodai · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.342 2026-08-25: 0.3412026-08-26: 0.3412026-08-27: 0.3412026-08-28: 0.3412026-08-29: 0.3412026-08-30: 0.3452026-08-31: 0.3452026-09-01: 0.3442026-09-02: 0.3442026-09-03: 0.3442026-09-04: 0.3442026-09-05: 0.342 2026-08-25 2026-09-05 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.

7Pitches 2026Season 41%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 Senga, Kodai · Aggregate zone metrics; not pitch-by-pitch locations Edge: 36%36%Zone: 45%45%Whiff: 26%26%Called strike: 15%15%First pitch strike: 42%42%Hard hit allowed: 40%40% 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 Senga, Kodai · 2026 arsenal snapshot 4-Seam Fastball: 41.2%Forkball: 24.0%Cutter: 14.4%Sweeper: 9.3%Slider: 7.0%Sinker: 3.7% FF41% · 96 mphprimary pitch FF 41%FO 24%FC 14%ST 9%SL 7%SI 4% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Senga, Kodai · 2026 arsenal snapshot 21″42″63″84″ 4-Seam Fastball: 41% usage, 0″ horizontal break, 13″ drop, 96.3 mphFF96 mphForkball: 24% usage, 1″ horizontal break, 39″ drop, 83.2 mphFO83 mphCutter: 14% usage, 0″ horizontal break, 27″ drop, 89.9 mphFC90 mphSweeper: 9% usage, 3″ horizontal break, 46″ drop, 81.5 mphST81 mphSlider: 7% usage, 0″ horizontal break, 35″ drop, 86.4 mphSL86 mphSinker: 4% usage, 2″ horizontal break, 27″ drop, 89.8 mphSI90 mphCurveball: 0% usage, 1″ horizontal break, 75″ drop, 66.4 mphCU66 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 59.0% 249 102 qualified
FC 21.8% 92 100 limited sample
SL 13.5% 57 101 limited sample
SI 5.5% 23 92 limited sample
CB 0.2% 1 85 limited sample
Method note

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

Reference layer

Current snapshot

Age33
Height6' 1"
Weight202 lb
Debut2023-04-02
Live layer

Delta / regression

ERA Δ+3.40
K% Δ+0.012

positive regression

Regression watch

Unlucky so far. Better days ahead.

1.4σ gap
wOBA-against (actual)0.384
xwOBA-against (deserved)0.342

Senga’s wOBA-against sits at 0.384, but the quality of contact underneath says it should be 0.342 — a gap of 0.042, 1.4 standard deviations from the MLB norm over 59 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
Pitching122026-07-31Four-Seam Fastball played up through FF/FO tunnel quality
Projection links / recent games

Available detail

Pitcher Projections 202624.1% K | 3.96 ERAProjection
2026-04-17 @ CHC6 ER / 3 K3.1 IP
2026-04-11 vs ATH7 ER / 3 K2.1 IP
2026-04-05 @ SF2 ER / 7 K5.2 IP
2026-03-31 @ STL2 ER / 9 K6.0 IP