BetUS vs Fliff Odds Comparison

BetUS currently offers lower vig overall. BetUS averages 5.64% vig (C+) while Fliff averages 7.50% vig (D).

We compare both books across 47 sports. The comparison covers vig percentages, grades, and which book offers better odds per sport.

Yes — BetUS has lower vig across all 5 sports we track. While it wins overall, the margin varies by sport, so it's worth checking specific sports for the full picture.

BetUS generally has higher vig than sharp-focused offshore books like Pinnacle, BetOnline, or LowVig.ag. They invest heavily in marketing and promotional bonuses, which results in wider odds margins. They're better suited for casual bettors who value bonuses.

BetUS offers generous-sounding welcome bonuses (often 100%+ match) but with significant rollover requirements — typically 10x or more. This means you may need to bet through the bonus amount 10+ times before withdrawing. Read the terms carefully before opting in.

Vig — short for vigorish, also called juice or overround — is the margin a sportsbook builds into its odds. It's the difference between the true probability of an outcome and what the odds imply. Lower vig means you keep more of your winnings on every bet. For example, a standard -110/-110 line has about 4.76% vig.

We pull fresh odds from The Odds API three times per day — at 6:00 AM, 2:00 PM, and 10:00 PM UTC. Each snapshot captures the latest lines from every sportsbook that has posted odds. The timestamp at the top of the page shows the most recent refresh.

Each sportsbook is graded on a letter scale based on average vig: A+ (under 2%) is exceptional, A (2–3%) is excellent, B+ (3–4%) is above average, B (4–5%) is the industry standard, C (5–6%) is below average, and D (above 6%) indicates high-juice markets.

Lower vig directly impacts your long-term returns. A bettor placing $1,000 per week at a book with 4% vig loses roughly $40/week to the house edge. At 2% vig, that drops to $20/week — a $1,040 difference over a year. For serious bettors, shopping for lower vig is one of the most reliable ways to improve profitability.

We track both regulated US sportsbooks (DraftKings, FanDuel, BetMGM, Caesars) and offshore books (Bovada, BetOnline, MyBookie, BetUS, LowVig.ag, BetAnySports). Data comes from The Odds API, which aggregates real-time lines from licensed sources.