NBA Summer League totals betting involves wagering on whether the combined score of both teams will finish over or under a number set by oddsmakers. These lines typically land higher than regular-season NBA totals might suggest for comparable talent levels, largely because Summer League games feature fast-paced, undisciplined play with poor defensive execution. Rosters are filled with rookies, G League players, and fringe roster hopefuls who tend to produce chaotic, high-variance scoring outputs. This volatility is precisely what makes the totals market interesting — books often struggle to calibrate lines accurately in a setting with limited data, frequent roster changes, and coaching staffs experimenting with lineups rather than optimizing for wins.
Sharp bettors look for edges in the first few days of Summer League, when sportsbooks are essentially guessing at roster rotations and minute distributions. Once a few games have been played, lines tighten considerably. Monitoring which star rookies are sitting out or on minute restrictions is critical, as a single high-usage player's absence can swing a total by several points. Regarding vig, Summer League totals often carry slightly wider juice than sides or regular-season NBA markets — books price in their own uncertainty by building in extra margin. Comparing vig across books on these lines can yield meaningful savings, especially on a market where the edges are already thin.
Totals Vig Rankings
| # | Sportsbook | Vig | Grade | Events |
|---|---|---|---|---|
| 1 | LowVig.ag | 3.39% | B+ | 2 |
| 2 | BetOnline.ag | 4.65% | B | 2 |
| 3 | BetUS | 4.76% | B | 2 |
| 4 | ReBet | 4.76% | B | 2 |
| 5 | Fanatics | 5.25% | C+ | 3 |
| 6 | DraftKings | 5.35% | C+ | 3 |
| 7 | FanDuel | 5.35% | C+ | 3 |
| 8 | Bovada | 5.40% | C+ | 3 |
| 9 | Pinnacle | 5.52% | C+ | 3 |
| 10 | BetMGM | 5.53% | C+ | 3 |
| 11 | Hard Rock Bet | 5.82% | C+ | 3 |
| 12 | MyBookie.ag | 5.90% | C+ | 3 |
| 13 | Caesars | 6.20% | C | 3 |
| 14 | BetAnything | 6.98% | C | 2 |
| 15 | theScore Bet (ESPN Bet) | 7.30% | D | 3 |
| 16 | Fliff | 8.69% | D- | 3 |
| 17 | BetRivers | 9.35% | D- | 3 |
Frequently Asked Questions
What is a totals (over/under) bet?
A totals bet is a wager on whether the combined score of both teams will be over or under a number set by the sportsbook. For example, an NFL total of 47.5 means you're betting whether the final combined score will be 48+ (over) or 47 or fewer (under).
How does totals vig compare to other markets?
Totals vig varies by sport but is generally moderate — between moneyline and spread vig. Totals attract less volume than spreads but more than most prop markets, putting them in a middle ground for vig. Weather and injury news can cause totals to move significantly, sometimes affecting vig.
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.