Every result here is measured against the REAL closing spread/total, not a flat 50% — the line already prices in team quality, so a real deviation from it (not just "good teams cover more") is what a genuine situational edge looks like.
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Watch out: A trend needs at least 30 decided games before it's marked trusted (a green border below) — below that, a cover rate away from 50% is not statistically distinguishable from chance, no matter how dramatic the record looks. "Units" and "ROI" assume a flat 1-unit bet at standard -110 odds on every qualifying game (we don't have a historical per-game price archive) — a real, disclosed approximation, not hidden in fine print.
Every card is from the labeled side's own perspective (e.g. "Home favorites" counts only how home favorites did against the spread). College football's rest/weather columns aren't available, so those situations only appear for NFL.