Overall Comparison
BetMGM
Average vig · D
↑ 0.20% up since yesterday
theScore Bet ✔ Lower Vig
Average vig · D
↑ 0.38% up since yesterday
BetMGM wins on 14 of 22 sports. The biggest gap is in UEFA Europa Conference League, where theScore Bet charges 1.92% less vig.
BetMGM and theScore Bet represent two distinct paths into the U.S. sports betting market. BetMGM is backed by the combined resources of MGM Resorts and Entain, giving it deep ties to the legacy casino industry and a massive existing customer base. theScore Bet, originally a Canadian sports media app before being acquired by Penn Entertainment in 2021, was built from a media-first foundation — its roots in content and score-tracking shaped a product designed to feel native to mobile-first sports fans. BetMGM tends to price lines competitively across major markets, leveraging its scale, while theScore Bet has historically targeted a younger, digitally savvy demographic with a streamlined interface and integrated news and stats feeds.
Bettors who prioritize breadth of markets, robust promotional offers, and the ability to tie their account into an established casino loyalty program (in this case, MGM's M Life Rewards ecosystem) will likely lean toward BetMGM. It consistently offers one of the wider menus for prop bets, same-game parlays, and alternative lines across major U.S. sports. theScore Bet, on the other hand, appeals to bettors who value a clean, fast user experience and want their betting integrated alongside real-time scores, injury updates, and editorial content — all within a single app. For bettors who prefer less friction between research and placing a wager, that integrated approach is a genuine advantage.
Beyond vig, bettors should weigh several practical factors. BetMGM is available in significantly more states and generally offers higher betting limits, making it more suitable for serious-volume bettors. Its payout speeds are reliable, though not always the fastest in the industry. theScore Bet's availability is more limited geographically, and its limits tend to be lower, but its app performance and interface are widely regarded as among the best in the market. Reliability and liquidity favor BetMGM at scale, while theScore Bet's edge lies in user experience and content integration.
Vig Comparison by Sport
Frequently Asked Questions
Is BetMGM or theScore Bet better for odds?
theScore Bet currently offers lower vig overall. BetMGM averages 7.39% vig (D) while theScore Bet averages 7.06% vig (D).
How does BetMGM compare to theScore Bet 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.
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 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.