Mithrandir Metrics
Pitcher projection 2026 Refreshed Jun 1 06:00 AM ET
Pitcher projection / NYM · 2026

Weaver, Luke

Run-prevention profile built on workable command

Primary
24.8% K%
Range
19.3% to 34.9%
Live Δ
yes
Team NYM Archetype Offspeed mix artist Age 33 Status Healthy / active roster
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 preseason3.73
ERA current pace3.04
ERA rolling p503.51
Observed weight32%
ERA
1.90 2.66 3.51 4.35 5.11
FIP
2.70 3.18 3.72 4.26 4.74
K%
20.3% 22.9% 25.9% 28.8% 31.4%
BB%
5.7% 6.9% 8.3% 9.6% 10.9%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-06-01
Pitching · percentile strip
BB%9.8%
35 -26 vs proj
Barrel allowed6.8%
63 +19 vs proj
Fastball velo94.9
61
Hard-hit allowed31.5%
89
K%24.1%
61
Whiff%22.8%
48 -23 vs proj
xwOBA allowed0.283
77
Mithrandir+

Stuff+ and arsenal context

Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; Arsenal Decomposition remains descriptive support under Stuff+.

2026-06-01
Mithrandir Stuff+107
86
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 50%Top usage
ride armside gloveside +Arsenal gap +Shape contrast
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 Weaver, Luke · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 2026-05-17: 0.3012026-05-19: 0.3012026-05-21: 0.2962026-05-23: 0.2912026-05-24: 0.2912026-05-25: 0.2862026-05-26: 0.2862026-05-28: 0.2862026-05-29: 0.2862026-05-30: 0.2862026-05-31: 0.2832026-06-01: 0.283 2026-05-17 2026-06-01 xwOBA allowed MITHRANDIR · CHARTS
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 Weaver, Luke · Aggregate zone metrics; not pitch-by-pitch locations Edge: 43%43%Zone: 48%48%Whiff: 23%23%Called strike: 16%16%First pitch strike: 49%49%Hard hit allowed: 32%32% 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 Weaver, Luke · 2026 arsenal snapshot 4-Seam Fastball: 50.1%Changeup: 34.9%Cutter: 15.0% MIX FF 50%CH 35%FC 15% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Weaver, Luke · 2026 arsenal snapshot FF: HB 0.0, IVB 1.0FFCH: HB -0.3, IVB 2.5CHFC: HB -0.1, IVB 1.9FC horizontal break IVB MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 51.1% 182 112 limited sample
CH 35.1% 125 104 limited sample
FC 13.8% 49 95 limited sample
Method note

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

Model read

Projection notes

1
templated note
Volume stays relief-shaped even when the bat-miss traits are strong.
2
templated note
Primary mix entering the season: 4-Seam Fastball 59%, Changeup 30%, Cutter 9%.
Live context

Current-season signal

ERA Δ-0.85
K% Δ-0.007
Sample26.7 IP
Projection table

Point projection and range

MetricPointRangeHalf-width
Innings45.1----
Batters Faced188----
K%24.8%19.3% to 34.9%+/- 7.8%
BB%8.0%5.0% to 11.9%+/- 3.4%
Whiff%26.1%21.3% to 31.7%+/- 5.2%
HR/91.360.65 to 2.41+/- 0.88
xwOBA Against0.2990.258 to 0.356+/- 0.049
Barrel% Allowed8.1%5.1% to 12.7%+/- 3.8%
ERA3.892.36 to 6.66+/- 2.15
FIP4.032.74 to 5.45+/- 1.36
WHIP1.1930.952 to 1.564+/- 0.306
Platoon / Shape
vs LHH

1618 career BF

xwOBA0.286
K%24.6%
BB%8.0%
Barrel8.0%
vs RHH

1699 career BF

xwOBA0.290
K%24.7%
BB%6.8%
Barrel9.3%