Mithrandir Metrics
Pitcher projection 2026 Refreshed Sep 26 06:00 AM ET
Pitcher projection / PHI · 2026

Mayza, Tim

Late-inning arm with usable miss-bat shape

Primary
18.5% K%
Range
12.0% to 26.7%
Live Δ
yes
Team PHI Archetype Balanced reliever 2 Age 34 Status Healthy / active roster
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.

2026-09-26
73
Pitching
percentile
Pitching9 metrics
58
Arsenal4 metrics
42
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-26
ERA preseason4.17
ERA current pace3.46
ERA rolling p503.78
Observed weight55%
ERA
1.88 2.78 3.78 4.78 5.68
FIP
2.16 2.85 3.62 4.40 5.09
K%
17.4% 19.2% 21.2% 23.2% 24.9%
BB%
5.2% 6.2% 7.2% 8.3% 9.2%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-09-26
Pitching · percentile strip
WHIP1.16
78
ERA3.46
70
BB%6.9%
78
K%23.5%
62 +37 vs proj
xwOBA allowed0.288
79 +33 vs proj
Barrel allowed6.5%
65
Fastball velo94.2
47
Hard-hit allowed45.5%
8
Whiff%21.1%
37 +22 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+.

2026-09-26
Mithrandir Stuff+103
57
Sinker Stuff+101
43
Fastball Stuff+101
39
Slider Stuff+99
29
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 Mayza, Tim · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.288 2026-09-12: 0.2832026-09-13: 0.2772026-09-14: 0.2772026-09-18: 0.2782026-09-19: 0.2842026-09-20: 0.2842026-09-21: 0.2842026-09-22: 0.2842026-09-23: 0.2832026-09-24: 0.2832026-09-25: 0.2832026-09-26: 0.288 2026-09-12 2026-09-26 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 Mayza, Tim · Aggregate zone metrics; not pitch-by-pitch locations Edge: 40%40%Zone: 49%49%Whiff: 21%21%Called strike: 18%18%First pitch strike: 53%53%Hard hit allowed: 46%46% 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 Mayza, Tim · 2026 arsenal snapshot Sinker: 56.3%Slider: 30.5%4-Seam Fastball: 11.2%Split-Finger: 2.0% SI56% · 94 mphprimary pitch SI 56%SL 30%FF 11%FS 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Mayza, Tim · 2026 arsenal snapshot 12″24″36″48″ Sinker: 56% usage, 2″ horizontal break, 22″ drop, 94.2 mphSI94 mphSlider: 30% usage, 0″ horizontal break, 37″ drop, 87.3 mphSL87 mph4-Seam Fastball: 11% usage, 7″ horizontal break, 17″ drop, 94.4 mphFF94 mphSplit-Finger: 2% usage, 14″ horizontal break, 26″ drop, 91.4 mphFS91 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SI 60.1% 424 101 qualified
SL 27.9% 197 99 limited sample
FB 12.0% 85 101 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
Plays better against lefties right now (0.264 vs 0.305 xwOBA allowed split).
2
templated note
Volume stays relief-shaped even when the bat-miss traits are strong.
3
templated note
Home park slightly inflates the home-run risk band.
4
templated note
Primary mix entering the season: Sinker 66%, Slider 31%, 4-Seam Fastball 4%.
Live context

Current-season signal

ERA Δ-0.62
K% Δ+0.050
Sample70.7 IP

positive regression

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings33.6----
Batters Faced149----
K%18.5%12.0% to 26.7%+/- 7.4%
BB%7.8%4.3% to 11.8%+/- 3.8%
Whiff%18.4%13.7% to 25.3%+/- 5.8%
HR/91.260.47 to 1.95+/- 0.74
xwOBA Against0.3170.247 to 0.380+/- 0.066
Barrel% Allowed7.2%3.4% to 11.4%+/- 4.0%
ERA4.081.68 to 7.02+/- 2.67
FIP3.992.56 to 6.69+/- 2.07
WHIP1.3421.124 to 1.843+/- 0.360
Platoon / Shape
vs LHH

643 career BF

xwOBA0.264
K%15.9%
BB%6.2%
Barrel5.2%
vs RHH

798 career BF

xwOBA0.305
K%14.9%
BB%7.3%
Barrel7.8%