Research preview · neutral working identity

Hardball Signal

An open, inspectable MLB analytics platform under construction: a Retrosheet-first historical backbone, independently calculated classic and advanced statistics, and a player-impact research program (CORE · CROWN · PULSE · SIGNAL) — with every number carrying its unit, model, status, and source lineage. No betting, no fantasy, no scraping.

Build identity loading… (if this text persists, the status manifest was unreachable — this page refuses to invent a status.)

What exists right now

This is an honest construction site. Nothing on this page is a rating, a projection, or a leaderboard — those surfaces appear only after their models pass predeclared validation gates. What is real today:

Admitted source captures

Capture manifest unavailable.

Identity backbone

Identity report unavailable.

Metric families (all pre-validation; labels rendered from the metric registry)

FamilyQuestion it answersStatus
COREContext-adjusted rate impact per role-standard workloadconcept
CROWNCumulative value above a role-specific replacement baselineprovisional
PULSERecent form against a full-season baselineresearch
SIGNALHow strongly the evidence supports each estimateresearch

Status ladder: concept → scaffold → research → provisional → validated (or blocked). Nothing ships to a default surface below validated without a conspicuous label.

What this site will not do

No odds, picks, or betting content. No fantasy advice. No automated collection from MLB digital properties. No republication of proprietary metrics. No fabricated pitch, tracking, or contact data — surfaces without an admitted lawful source say so plainly.