Overall Comparison
BetOnline.ag ✔ Lower Vig
Average vig · B
↑ 0.15% up since yesterday
Fliff
Average vig · D-
↑ 0.08% up since yesterday
BetOnline.ag wins on 18 of 18 sports. The biggest gap is in Turkey Super League, where BetOnline.ag charges 6.02% less vig.
BetOnline.ag and Fliff represent two fundamentally different approaches to sports betting. BetOnline operates as an established offshore sportsbook that has been serving U.S. bettors since the early 2000s, offering a traditional full-service gambling experience with real-money wagering, casino games, and poker. Fliff, by contrast, operates as a sweepstakes-based sportsbook available in most U.S. states, using a dual-currency model (Fliff Coins and Fliff Cash) to navigate domestic regulations. This structural difference shapes nearly everything about the two platforms — from deposit methods to withdrawal timelines to the types of bettors each one attracts.
Bettors who prioritize accessibility and legal clarity may lean toward Fliff, which operates within a regulated U.S. framework and offers a low-barrier entry point that appeals to casual and newer bettors. Its sweepstakes model means users can participate in most states without needing access to a licensed state-by-state sportsbook. BetOnline, on the other hand, is better suited for experienced bettors who want higher limits, sharper lines across a wider menu of markets, and the ability to wager with cryptocurrency. BetOnline's vig tends to be competitive on major markets, and its willingness to take meaningful action on both sides of a line gives it an edge for serious volume bettors.
Beyond vig, the practical differences are significant. BetOnline offers faster crypto payouts but can be slower with fiat withdrawals, and as an offshore operator it carries inherent counterparty risk — there's no U.S. regulatory body to appeal to in a dispute. Fliff's sweepstakes structure means redemption processes for Fliff Cash can feel less straightforward than a traditional cashout, and its betting limits are generally lower. Interface-wise, Fliff delivers a cleaner, mobile-first experience designed for casual engagement, while BetOnline's platform is more feature-dense but less polished. Bettors should weigh these tradeoffs against the live vig data on this page to determine which book delivers better overall value for their specific betting style.
Vig Comparison by Sport
Frequently Asked Questions
Is BetOnline.ag or Fliff better for odds?
BetOnline.ag currently offers lower vig overall. BetOnline.ag averages 4.77% vig (B) while Fliff averages 9.28% vig (D-).
How does BetOnline.ag compare to Fliff by sport?
We compare both books across 71 sports. The comparison covers vig percentages, grades, and which book offers better odds per sport.
Does BetOnline.ag beat the other book in every sport?
Yes — BetOnline.ag has lower vig across all 18 sports we track. While it wins overall, the margin varies by sport, so it's worth checking specific sports for the full picture.
Is BetOnline good for sharp bettors?
BetOnline is one of the sharper offshore books. They offer relatively high limits, competitive vig, and are slower to limit winning bettors compared to recreational sites. They're a popular choice for serious bettors alongside Pinnacle and BetAnySports.
What sports does BetOnline cover?
BetOnline covers a wide range of sports including NFL, NBA, MLB, NHL, NCAAF, NCAAB, UFC/MMA, soccer, tennis, golf, and many international sports. They're known for having one of the broadest market offerings among offshore sportsbooks.
How does BetOnline handle payouts?
BetOnline offers payouts via cryptocurrency (fastest, usually same day), check by courier (7–14 days), and bank wire (5–7 days). They provide one free payout per month, with fees for additional withdrawals depending on the method.
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.
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 exceptional and rare — these are typically sharp-friendly books. A (2–3%) is excellent. B+ (3–4%) is above average. B (4–5%) is the industry standard for most recreational sportsbooks. C (5–6%) is below average. D (above 6%) indicates high-juice markets where bettors face a steep cost per wager.
- 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.