Mithrandir Metrics
Pitcher projection 2026 Refreshed Sep 5 06:00 AM ET
Pitcher projection / PIT · 2026

Soto, Gregory

Late-inning arm with usable miss-bat shape

Primary
25.1% K%
Range
18.0% to 32.2%
Live Δ
yes
Team PIT Archetype Balanced reliever 2 Age 31 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.

2026-09-05
77
Pitching
percentile
Pitching9 metrics
78
Arsenal4 metrics
37
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 preseason3.82
ERA current pace3.17
ERA rolling p503.49
Observed weight52%
ERA
1.76 2.58 3.49 4.39 5.21
FIP
2.48 2.92 3.41 3.90 4.34
K%
23.4% 25.3% 27.3% 29.4% 31.2%
BB%
7.3% 8.4% 9.5% 10.7% 11.7%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-09-05
Pitching · percentile strip
WHIP1.11
84
ERA3.17
77
BB%9.4%
45
K%28.5%
88 +17 vs proj
xwOBA allowed0.263
92 +26 vs proj
Barrel allowed5.8%
76
Fastball velo96.6
82
Hard-hit allowed35.1%
75
Whiff%27.7%
84
Mithrandir+

Stuff+ and arsenal context

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

2026-09-05
Mithrandir Stuff+102
45
Sinker Stuff+101
48
Slider Stuff+100
35
Fastball Stuff+97
20
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.

5Pitches 2026Season 37%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 Soto, Gregory · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.313 0.263 2026-08-25: 0.2672026-08-26: 0.2672026-08-27: 0.2652026-08-28: 0.2652026-08-29: 0.2652026-08-30: 0.2642026-08-31: 0.2642026-09-01: 0.2642026-09-02: 0.2632026-09-03: 0.2632026-09-04: 0.2632026-09-05: 0.263 2026-08-25 2026-09-05 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 Soto, Gregory · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 44%44%Whiff: 28%28%Called strike: 19%19%First pitch strike: 51%51%Hard hit allowed: 35%35% 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 Soto, Gregory · 2026 arsenal snapshot Sinker: 37.3%Slider: 28.4%4-Seam Fastball: 17.0%Sweeper: 16.3%Split-Finger: 1.1% SI37% · 96 mphprimary pitch SI 37%SL 28%FF 17%ST 16%FS 1% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Soto, Gregory · 2026 arsenal snapshot 12″24″36″48″ Sinker: 37% usage, 4″ horizontal break, 21″ drop, 96.4 mphSI96 mphSlider: 28% usage, 3″ horizontal break, 37″ drop, 83.5 mphSL83 mph4-Seam Fastball: 17% usage, 4″ horizontal break, 15″ drop, 97.1 mphFF97 mphSweeper: 16% usage, 6″ horizontal break, 39″ drop, 82.6 mphST83 mphSplit-Finger: 1% usage, 17″ horizontal break, 29″ drop, 87.8 mphFS88 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
SL 44.6% 242 100 qualified
SI 37.0% 201 101 qualified
FB 18.4% 100 97 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 (0.270 vs 0.306 xwOBA allowed split).
2
templated note
Volume stays relief-shaped even when the bat-miss traits are strong.
3
templated note
Home park gives the run-prevention profile a small HR cushion.
4
templated note
Primary mix entering the season: Sinker 53%, Slider 32%, Sweeper 7%.
Live context

Current-season signal

ERA Δ-0.67
K% Δ+0.033
Sample61.3 IP

positive regression

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings39.6----
Batters Faced182----
K%25.1%18.0% to 32.2%+/- 7.1%
BB%9.4%6.5% to 14.3%+/- 3.9%
Whiff%27.4%22.2% to 34.4%+/- 6.1%
HR/90.960.51 to 1.72+/- 0.60
xwOBA Against0.3000.258 to 0.364+/- 0.053
Barrel% Allowed6.5%3.2% to 10.3%+/- 3.5%
ERA3.842.16 to 6.98+/- 2.41
FIP3.482.46 to 5.06+/- 1.30
WHIP1.3091.027 to 1.915+/- 0.444
Platoon / Shape
vs LHH

592 career BF

xwOBA0.270
K%22.9%
BB%8.7%
Barrel4.7%
vs RHH

1201 career BF

xwOBA0.306
K%21.9%
BB%9.9%
Barrel5.8%