BettingLab

NBA · spread_h1 · Published system

Home underdog of 4.5 or less on a 4+ game losing streak (first half)

Home team, underdog of 4.5 or less at the close, has lost 4+ straight. Bet that team ATS. First-half spread. Bet: back them on the 1st half spread.

39-28-1 since 2023, ROI after the vig +11.1%.

Published system — made money 2023–26 after the vig. Past results, not a guarantee.

All bets, 2023-24 to 2025-26
39-28-1 (n=67), won 58.2% (95% range 46.3% to 69.3%); break-even 52.4%; ROI after the vig +11.1%
Earlier seasons
2023-24: 13-9, +12.8%
Later seasons
2024-25 to 2025-26: 26-19-1, +10.3%
2023-24
13-9 (n=22), ROI +12.8%
2024-25
13-7-1 (n=20), ROI +24.3%
2025-26
13-12 (n=25), ROI -1.0%

How this is graded

This system was published elsewhere; we graded its rule on every game it fit in 2023-24 to 2025-26 at our closing consensus prices. ROI is profit per unit staked after the vig. We list a system only if it made money over the whole sample and in both the earlier and later seasons, on 50 or more decided bets. Rates exclude pushes; n counts decided bets.

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For information only. Past results don't predict future ones. 21+. Gambling problem? Call 1-800-GAMBLER. Trend data from the MoneyLine API.