Overall Comparison
BetMGM
Average vig · D
↑ 0.20% up since yesterday
BetUS ✔ Lower Vig
Average vig · C
BetUS wins on 19 of 21 sports. The biggest gap is in UEFA Champions League, where BetUS charges 2.19% less vig. BetMGM is only competitive in Championship and Liga MX.
BetMGM and BetUS represent two fundamentally different models in sports betting. BetMGM operates as a fully regulated, state-licensed sportsbook backed by MGM Resorts International, one of the largest gaming companies in the world. It holds licenses in dozens of U.S. states and operates under strict regulatory oversight. BetUS, by contrast, is an offshore sportsbook based in Costa Rica that accepts U.S. customers but operates outside the American regulatory framework. This distinction shapes virtually every aspect of the bettor's experience — from deposit methods and payout reliability to legal protections and tax reporting.
On the betting experience itself, BetMGM typically offers tighter lines on major U.S. sports, competitive vig, and a polished mobile app with live betting, same-game parlays, and deep prop markets. Its limits are generally reasonable for recreational bettors, though sharp players may find themselves restricted over time. BetUS tends to offer higher limits in some cases and aggressive promotional bonuses — particularly on initial deposits — but those bonuses often come with rollover requirements that can be difficult to clear. BetUS lines can also carry wider margins, especially on less popular markets, meaning bettors may be paying more in built-in vig over time.
The most critical differentiator beyond odds is payout reliability. BetMGM withdrawals are processed through regulated banking channels, and bettors have legal recourse if issues arise. Offshore books like BetUS lack that safety net — payout delays have been a recurring complaint among users, and there is no U.S. regulatory body to escalate disputes to. For bettors in states where BetMGM is available, the regulated option provides stronger consumer protections, faster cashouts, and a more transparent operating environment. BetUS may appeal to bettors in states without legal options, but that convenience comes with meaningful trade-offs in security and accountability.
Vig Comparison by Sport
Frequently Asked Questions
Is BetMGM or BetUS better for odds?
BetUS currently offers lower vig overall. BetMGM averages 7.39% vig (D) while BetUS averages 6.32% vig (C).
How does BetMGM compare to BetUS by sport?
We compare both books across 71 sports. The comparison covers vig percentages, grades, and which book offers better odds per sport.
How does BetMGM vig rank among regulated books?
BetMGM typically sits in the middle of the pack among regulated US sportsbooks. Their vig is comparable to DraftKings and FanDuel, though it varies by sport and market. They compete primarily on brand recognition and their MGM Rewards loyalty program.
Does BetMGM have good odds for any specific sport?
BetMGM occasionally offers competitive pricing on NBA and NHL markets where they have strong trading desks. However, their overall vig profile is similar to other regulated books. Check our sport-by-sport breakdown above for current rankings.
How does BetUS vig compare to other offshore books?
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.
What are BetUS bonus terms like?
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.
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.