History describes one explicitly selected side cohort at a time. It does not recommend bets or estimate profit.
A row is one selected side observation, not both sides of a matchup. ATS rate is wins divided by wins plus losses; pushes are displayed but excluded from decided n. Straight rates use the same formula and call neutral outcomes ties.
Wilson 95% intervals use only decided outcomes. An empty cohort has no rate or interval. The dashed 52.4% line is a hypothetical equal-price -110 reference, not a Circa contest payout, ROI, or prediction.
Market opener uses SBRO opener to its own close. Card and selection views use card/board line to validated historical close. Close-only market rows have no independent movement endpoint and are marked unavailable, never zero.
Distribution buckets are 0; (0, 0.5]; (0.5, 1]; (1, 1.5]; (1.5, 2.5]; and >2.5. Key touches and crossings retain their signed endpoints.
Circa and Westgate comparisons use matched season/week/matchup and same selected side after the active lens, team, lookback, and filters. Their denominators are paired separately. Westgate is partial, so its warning stays beside the comparison.
Each Lab receipt records query state, exact row IDs, source fingerprint, and scoped coverage messages. Browser assets expose only safe relative identifiers; source parsing, joins, grading, movement, and line derivation occur before browser delivery.