Overall Vig
D · Rank #18 of 20
Fliff occupies a unique niche in the U.S. sports betting landscape as a social sportsbook that operates under a sweepstakes model rather than traditional state-by-state sports betting licenses. This distinction is critical: Fliff uses a virtual currency system (Fliff Coins and Fliff Cash) that allows it to be available in a far wider range of states than conventional regulated sportsbooks, sidestepping many of the licensing requirements that restrict competitors like DraftKings or FanDuel. While it operates within U.S. legal frameworks, bettors should understand that the sweepstakes model means it isn't regulated by the same state gaming commissions that oversee traditional books, which affects the nature of consumer protections available.
Fliff's biggest strength is accessibility — its broad state availability and low-barrier entry make it easy to get started, and the app itself is clean and user-friendly. The platform covers major sports markets reasonably well, and its sweepstakes structure appeals to users who want sports betting-style action without depositing into a traditional sportsbook account. However, the weaknesses are notable. Odds competitiveness tends to lag behind major regulated books, and the market depth is shallower, particularly for props, live betting, and niche sports. Payout processes through the sweepstakes model can also feel less straightforward than a standard withdrawal from a licensed operator, and maximum stakes are generally limited compared to what sharper or higher-volume bettors expect.
Fliff is best suited for casual, recreational bettors — particularly those in states where major sportsbooks haven't yet launched. It provides an entry point into sports wagering with minimal financial commitment and a gamified experience. Serious bettors looking for sharp lines, deep markets, or high limits will find it lacking, but for someone looking to engage with sports picks in a low-stakes, accessible format, Fliff fills a legitimate gap in the market.
Vig by Sport
| Sport | Avg Vig | Grade |
|---|---|---|
| ATP Washington Open | 7.73% | D |
| KBO | 7.46% | D |
| Liga MX | 10.36% | F |
| MMA | 6.11% | C |
| MLB | 6.17% | C |
| NPB | 7.80% | D |
| MLS | 10.16% | F |
| WNBA | 6.76% | C |
| WTA Washington Open | 8.50% | D- |
Fliff Odds by Sport
Frequently Asked Questions
How good are Fliff odds?
Fliff has an average vig of 7.89%, 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 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.
How is the vig grade calculated?
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.
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, BetAnySports). 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 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 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.