Overall Vig
D · Rank #18 of 20
Averages are unweighted across all 8 sports each book prices. Books that post lines on many low-liquidity international leagues (e.g. BetMGM, Pinnacle) carry higher averages than their NFL/NBA pricing alone would suggest — compare per-sport rows for like-for-like.
↑ 7-day trend: Fliff's average vig has worsened by 0.27 percentage points over the past week (from 7.66% to 7.93%).
Fliff occupies a unique position in the regulated U.S. market by operating as a social sportsbook that uses a sweepstakes model rather than traditional real-money wagering. This structure allows Fliff to be available in a significantly larger number of states than conventional licensed sportsbooks, giving it broad accessibility. Users engage with Fliff Coins (play money) and Fliff Cash (sweepstakes currency that can be redeemed for real prizes), which keeps the platform within legal boundaries in markets where traditional sports betting legislation hasn't passed. It's worth understanding that this model means Fliff isn't a licensed sportsbook in the traditional sense, which affects everything from line quality to the overall betting experience.
Fliff's primary strength is availability — bettors in states without legal sportsbooks can still get action on games through its sweepstakes framework. The app is clean, mobile-first, and straightforward to navigate, with coverage across major U.S. sports. However, compared to established books like DraftKings, FanDuel, or BetMGM, Fliff falls short in several areas. Odds tend to be less competitive, market depth is limited, and the sweepstakes currency system introduces friction that experienced bettors will find cumbersome. Live betting options and prop variety also lag behind what traditional regulated books offer. Sharp bettors or anyone focused on getting the best number will find little reason to prioritize Fliff over a standard sportsbook where one is available.
Fliff is best suited for casual, recreational bettors in states where conventional sports betting isn't yet legal. It provides a way to engage with real-stakes outcomes without needing to turn to offshore operators, which carries its own set of risks. For bettors in fully regulated states, Fliff is unlikely to be a primary book, but it can serve as a supplementary option for those who enjoy the social and gamified elements of the platform.
Analysis updated August 23, 2026. Odds data above refreshes hourly.
Vig by Sport
Fliff Odds by Sport
Frequently Asked Questions
How good are Fliff odds?
Fliff has an average vig of 7.93%, earning a grade of D. They rank #18 out of 20 tracked sportsbooks.
What is vig (vigorish) in sports betting?
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.
How often is this data updated?
We pull fresh odds from The Odds API every hour, on the hour (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.
How is the vig grade calculated?
Each sportsbook is graded on average vig: A+ (under 2%) is exchange-level pricing, A (2–3%) very competitive, B+ (3–4%) above average, B (4–5%) the industry standard, C+ (5–6%) slightly below average, C (6–7%) below average, D (7–8%) high vig, D− (8–10%) very high, F (10%+) predatory.
Why does lower vig matter for bettors?
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.
What sportsbooks do you track?
We track both regulated US sportsbooks (DraftKings, FanDuel, BetMGM, Caesars) and offshore books (Bovada, BetOnline, MyBookie, BetUS, LowVig.ag, BetAnything). Data comes from The Odds API, which aggregates real-time lines from licensed sources.
How We Calculate These Numbers
- Data Source
- All odds on this page come from The Odds API, which aggregates real-time lines from licensed US and offshore sportsbooks. We track moneyline, spread, and totals markets across every sport with active betting lines.
- Update Frequency
- We pull a fresh snapshot of every tracked market every hour, on the hour (UTC). Each snapshot captures the latest lines from every sportsbook that has posted odds for a given event. The timestamp at the top of each page tells you exactly when the data was last refreshed.
- Vig Calculation
- Vig (short for vigorish, also called juice or overround) measures the margin a sportsbook builds into its odds. We calculate it by converting the odds on each side of a market to implied probabilities, summing those probabilities, and subtracting 100%. For example, a market priced at -110/-110 implies 52.38% on each side — a total of 104.76%, meaning a vig of 4.76%. Lower vig means better value for bettors because you keep more of your winnings.
- Per-Market Breakdown
- We compute vig separately for each market type: moneyline (h2h), point spreads, and totals (over/under). The "average vig" shown for each sportsbook is the mean across all market types weighted by the number of events sampled in each market.
- Grading Scale
- Every sportsbook receives a letter grade based on its average vig: A+ (under 2%) is exchange-level pricing. A (2–3%) is very competitive. B+ (3–4%) is above average. B (4–5%) is the industry standard — a -110/-110 line is 4.76%. C+ (5–6%) is slightly below average. C (6–7%) is below average. D (7–8%) is high vig. D− (8–10%) is very high vig. F (10%+) is predatory pricing. See the full Vig Index Methodology for formulas, worked examples, and known limitations.
- Trend Tracking
- We store daily snapshots for 30 days, allowing us to show 24-hour and 7-day vig trends. A downward trend (improving) means sportsbooks are tightening their lines — often in response to increased competition or higher betting volume as a season heats up.