**Definition**: Target home underdogs with spreads of +5 or higher, exploiting public bias toward favorites (sharps win ~55% long-term on these).\n\n**Key Filter**: Opponent on back-to-back or public >70% on favorite (historical +EV 2-5%).\n\n**Example**: Bet Portland Trail Blazers +6 vs. Lakers if public 75% on Lakers—covers ~52% historically (2020-24 data).\n\n**Practical Guidance**: Stake 1-2% bankroll (fractional Kelly: edge/odds variance); limit to 3-5 bets/week; check injuries/rest via BallDontLie.\n\n**Caveats**: High variance (streaks regress); edge fades in playoffs; confirm no key absences.\n\n**Backtest this?** Say: "Backtest NBA home underdogs +5 or more, 2024-25 season." Pick league/bet type/time!