Mithrandir Metrics
Pitcher projection 2026 Refreshed Jul 17 06:00 AM ET
Pitcher projection / DET · 2026

Flaherty, Jack

Breaking-ball driven starter profile

Primary
25.1% K%
Range
21.2% to 31.8%
Live Δ
yes
Team DET Archetype Breaking-ball attack 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.

2026-07-17
44
Pitching
percentile
Pitching9 metrics
38
Arsenal6 metrics
15
Rolling projection

Preseason / current pace / Bayesian update

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

2026-07-17
ERA preseason4.01
ERA current pace4.48
ERA rolling p504.31
Observed weight63%
ERA
3.09 3.67 4.31 4.95 5.53
FIP
3.22 3.56 3.95 4.34 4.68
K%
23.4% 24.7% 26.1% 27.4% 28.7%
BB%
7.9% 8.6% 9.4% 10.2% 10.9%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-07-17
Pitching · percentile strip
WHIP1.41
32
ERA4.48
39
BB%10.2%
32 -26 vs proj
K%26.0%
74
xwOBA allowed0.321
42
Barrel allowed9.0%
30
Fastball velo92.6
23
Hard-hit allowed47.1%
6
Whiff%24.5%
61
Mithrandir+

Stuff+ and arsenal context

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

2026-07-17
Curveball Stuff+99
10
Fastball Stuff+99
27
Mithrandir Stuff+97
17
Slider Stuff+100
34
Changeup Stuff+85
1
Sinker Stuff+88
2
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 49%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 Flaherty, Jack · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.314 0.321 2026-07-06: 0.3212026-07-07: 0.3212026-07-08: 0.3212026-07-09: 0.3212026-07-10: 0.3212026-07-11: 0.3212026-07-12: 0.3222026-07-13: 0.3222026-07-14: 0.3222026-07-15: 0.3222026-07-16: 0.3212026-07-17: 0.321 2026-07-06 2026-07-17 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 Flaherty, Jack · Aggregate zone metrics; not pitch-by-pitch locations Edge: 38%38%Zone: 45%45%Whiff: 24%24%Called strike: 16%16%First pitch strike: 47%47%Hard hit allowed: 47%47% 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 Flaherty, Jack · 2026 arsenal snapshot 4-Seam Fastball: 48.9%Slider: 24.4%Knuckle Curve: 19.0%Sinker: 4.5%Changeup: 3.2% FF49% · 93 mphprimary pitch FF 49%SL 24%KC 19%SI 5%CH 3% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal Flaherty, Jack · 2026 arsenal snapshot 15″30″45″60″ 4-Seam Fastball: 49% usage, 0″ horizontal break, 16″ drop, 92.8 mphFF93 mphSlider: 24% usage, 0″ horizontal break, 34″ drop, 85.1 mphSL85 mphKnuckle Curve: 19% usage, 0″ horizontal break, 54″ drop, 78.1 mphKC78 mphSinker: 5% usage, 3″ horizontal break, 24″ drop, 91.0 mphSI91 mphChangeup: 3% usage, 11″ horizontal break, 29″ drop, 85.6 mphCH86 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 49.5% 515 99 qualified
SL 24.8% 258 100 qualified
CB 19.7% 205 99 qualified
SI 4.0% 42 88 limited sample
CH 2.0% 21 85 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
Primary mix entering the season: 4-Seam Fastball 46%, Knuckle Curve 25%, Slider 24%.
pitcher
Live context

Current-season signal

ERA Δ+0.55
K% Δ+0.009
Sample92.0 IP

positive regression

Projection table

Point projection and range

MetricPointRangeHalf-width
Innings77.5----
Batters Faced330----
K%25.1%21.2% to 31.8%+/- 5.3%
BB%8.2%5.9% to 10.6%+/- 2.4%
Whiff%24.9%22.1% to 29.8%+/- 3.8%
HR/91.330.92 to 2.09+/- 0.59
xwOBA Against0.3220.277 to 0.357+/- 0.040
Barrel% Allowed8.5%6.0% to 12.7%+/- 3.4%
ERA3.932.62 to 5.96+/- 1.67
FIP3.872.91 to 4.91+/- 1.00
WHIP1.2731.085 to 1.562+/- 0.239
Platoon / Shape
vs LHH

2355 career BF

xwOBA0.315
K%23.5%
BB%9.1%
Barrel8.9%
vs RHH

2207 career BF

xwOBA0.300
K%26.3%
BB%6.5%
Barrel10.2%