Mithrandir Metrics
Pitcher projection 2026 Refreshed Sep 27 06:00 AM ET
Pitcher projection / KC · 2026

Cruz, Steven

Late-inning arm with usable miss-bat shape

Primary
20.5% K%
Range
13.7% to 28.3%
Live Δ
yes
Team KC Archetype Balanced reliever 2 Age 27 Status Status unconfirmed
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
57
Pitching
percentile
Pitching9 metrics
57
Arsenal4 metrics
48
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 preseason3.80
ERA current pace4.29
ERA rolling p504.05
Observed weight51%
ERA
2.29 3.12 4.05 4.98 5.82
FIP
3.67 4.09 4.55 5.02 5.43
K%
19.5% 21.4% 23.5% 25.6% 27.5%
BB%
6.8% 7.9% 9.2% 10.4% 11.6%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-09-27
Pitching · percentile strip
WHIP1.31
56
ERA4.29
44
BB%8.7%
52
K%26.4%
79 +41 vs proj
xwOBA allowed0.310
53
Barrel allowed11.1%
7 -57 vs proj
Fastball velo98.4
97
Hard-hit allowed37.7%
56
Whiff%25.6%
72 +28 vs proj
Mithrandir+

Stuff+ and arsenal context

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

2026-09-27
Fastball Stuff+106
78
Mithrandir Stuff+104
66
Cutter Stuff+99
31
Slider Stuff+96
15
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 56%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 Cruz, Steven · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.310 2026-09-13: 0.3092026-09-14: 0.3092026-09-18: 0.3072026-09-19: 0.3072026-09-20: 0.3072026-09-21: 0.3102026-09-22: 0.3102026-09-23: 0.3102026-09-24: 0.3102026-09-25: 0.3102026-09-26: 0.3102026-09-27: 0.310 2026-09-13 2026-09-27 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 Cruz, Steven · Aggregate zone metrics; not pitch-by-pitch locations Edge: 37%37%Zone: 53%53%Whiff: 26%26%Called strike: 13%13%First pitch strike: 50%50%Hard hit allowed: 38%38% 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 Cruz, Steven · 2026 arsenal snapshot 4-Seam Fastball: 56.2%Cutter: 28.7%Slider: 14.8%Sweeper: 0.3% FF56% · 98 mphprimary pitch FF 56%FC 29%SL 15%ST 0% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Cruz, Steven · 2026 arsenal snapshot 9″18″27″36″ 4-Seam Fastball: 56% usage, 2″ horizontal break, 14″ drop, 98.4 mphFF98 mphCutter: 29% usage, 0″ horizontal break, 23″ drop, 93.8 mphFC94 mphSlider: 15% usage, 0″ horizontal break, 31″ drop, 89.4 mphSL89 mphSweeper: 0% usage, 11″ horizontal break, 27″ drop, 88.7 mphST89 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 55.4% 303 106 qualified
FC 29.6% 162 99 limited sample
SL 15.0% 82 96 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
Home park gives the run-prevention profile a small HR cushion.
3
templated note
Primary mix entering the season: 4-Seam Fastball 50%, Cutter 26%, Slider 24%.
Live context

Current-season signal

ERA Δ+0.42
K% Δ+0.058
Sample59.7 IP

positive regression

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings32.6----
Batters Faced137----
K%20.5%13.7% to 28.3%+/- 7.3%
BB%9.4%5.4% to 13.9%+/- 4.3%
Whiff%21.8%15.3% to 27.8%+/- 6.2%
HR/91.150.65 to 2.02+/- 0.68
xwOBA Against0.3120.244 to 0.354+/- 0.055
Barrel% Allowed6.7%3.2% to 10.1%+/- 3.5%
ERA3.871.46 to 6.45+/- 2.50
FIP4.253.03 to 5.52+/- 1.24
WHIP1.3490.900 to 1.682+/- 0.391
Platoon / Shape
vs LHH

129 career BF

xwOBA0.261
K%18.2%
BB%9.7%
Barrel4.8%
vs RHH

165 career BF

xwOBA0.249
K%17.5%
BB%6.8%
Barrel5.4%