NBA Summer League presents one of the most volatile and inefficient betting environments in professional basketball. Held primarily in Las Vegas each July, the event features rosters packed with rookies, undrafted free agents, and fringe roster players fighting for NBA contracts. Lineups shift dramatically from game to game as coaches experiment with different combinations, and the quality of play is noticeably lower than the regular season — turnovers are frequent, three-point shooting is erratic, and scoring totals can swing wildly. Most sportsbooks offer limited markets compared to the regular NBA season, typically restricting options to spreads, moneylines, and game totals, with player prop availability varying significantly by book.
Vig on Summer League lines tends to run wider than standard NBA regular-season games, often significantly so. Books are pricing these contests with less historical data, less reliable injury reporting, and far less market volume to sharpen lines. The combination of thin betting limits and limited sharp action means oddsmakers build in extra margin to protect against uncertainty. It's not uncommon to see spreads juiced at -115 on both sides rather than the standard -110, and moneyline margins can be notably inflated, particularly on less marquee matchups. Comparing vig across books becomes especially valuable here, as the gap between the sharpest and softest pricing is often wider than bettors expect.
The Summer League schedule compresses roughly two weeks of action into a condensed window, meaning odds competition can vary day to day. Early-tournament lines, when rosters and rotations are least known, typically carry the widest margins. As the event progresses toward the championship game, books gain more data and lines tighten modestly. Key factors that drive line movement include late roster announcements — teams frequently rest top draft picks or limit their minutes without warning — coaching experimentation, and the simple reality that motivation varies enormously. A player auditioning for a guaranteed contract approaches a game very differently than a lottery pick logging showcase minutes, and identifying those dynamics is where informed bettors can find genuine edges.
Analysis updated September 6, 2026. Odds data above refreshes hourly.
Brooklyn Nets @ Oklahoma City Thunder
Best moneyline price: Oklahoma City Thunder -10000 at BetMGM; Brooklyn Nets +4000 at DraftKings.
| Side | Market | Best Line | Worst |
|---|---|---|---|
| Oklahoma City Thunder | Moneyline | BetMGM: -10000 | -1000000 |
| Brooklyn Nets | Moneyline | DraftKings: +4000 | +1600 |
| Over 193.5 | Total | DraftKings: +100 | -120 |
| Under 193.5 | Total | Caesars: -120 | -130 |
| Oklahoma City Thunder -21.5 | Spread | DraftKings: -105 | -130 |
| Brooklyn Nets +21.5 | Spread | Fliff: -115 | -125 |
| Over 194.5 | Total | Fanatics: +105 | -139 |
| Under 194.5 | Total | BetRivers: -114 | -140 |
| Over 190.5 | Total | theScore Bet (ESPN Bet): -125 | -125 |
| Under 190.5 | Total | theScore Bet (ESPN Bet): -110 | -110 |
| Oklahoma City Thunder -20.5 | Spread | Pinnacle: -110 | -130 |
| Brooklyn Nets +20.5 | Spread | BetMGM: +100 | -120 |
Denver Nuggets @ Toronto Raptors
Best moneyline price: Toronto Raptors +142 at LowVig.ag; Denver Nuggets -145 at Bovada.
| Side | Market | Best Line | Worst |
|---|---|---|---|
| Toronto Raptors | Moneyline | LowVig.ag: +142 | +115 |
| Denver Nuggets | Moneyline | Bovada: -145 | -175 |
| Toronto Raptors +3.5 | Spread | FanDuel: -110 | -115 |
| Denver Nuggets -3.5 | Spread | Pinnacle: -107 | -120 |
| Over 189.5 | Total | FanDuel: -110 | -115 |
| Under 189.5 | Total | FanDuel: -110 | -115 |
| Over 190.5 | Total | ReBet: -110 | -125 |
| Under 190.5 | Total | ReBet: -110 | -112 |
| Toronto Raptors +2.5 | Spread | theScore Bet (ESPN Bet): -110 | -110 |
| Denver Nuggets -2.5 | Spread | BetRivers: -118 | -120 |
| Over 191.5 | Total | Bovada: -105 | -115 |
| Under 191.5 | Total | DraftKings: -108 | -115 |
| Over 190 | Total | Caesars: -110 | -110 |
| Under 190 | Total | Caesars: -110 | -110 |
| Over 189 | Total | LowVig.ag: -118 | -120 |
| Under 189 | Total | LowVig.ag: +103 | +100 |
Golden State Warriors @ Memphis Grizzlies
Best moneyline price: Memphis Grizzlies +186 at BetOnline.ag; Golden State Warriors -200 at BetMGM.
| Side | Market | Best Line | Worst |
|---|---|---|---|
| Memphis Grizzlies | Moneyline | BetOnline.ag: +186 | +150 |
| Golden State Warriors | Moneyline | BetMGM: -200 | -222 |
| Memphis Grizzlies +4.5 | Spread | Fanatics: +100 | -115 |
| Golden State Warriors -4.5 | Spread | BetMGM: -110 | -125 |
| Over 182.5 | Total | BetMGM: -105 | -120 |
| Under 182.5 | Total | LowVig.ag: -107 | -115 |
| Memphis Grizzlies +5.5 | Spread | LowVig.ag: -106 | -110 |
| Golden State Warriors -5.5 | Spread | LowVig.ag: -106 | -110 |
| Memphis Grizzlies +5 | Spread | MyBookie.ag: -110 | -115 |
| Golden State Warriors -5 | Spread | MyBookie.ag: -110 | -115 |
Frequently Asked Questions
What are the best NBA Summer League lines today?
The table below shows which sportsbook has the best available price on each side of every upcoming NBA Summer League event. Line shopping across multiple books can save you 1–3% per bet compared to sticking with a single sportsbook.
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 every hour, on the hour (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 average vig: A+ (under 2%) is exchange-level pricing, A (2–3%) very competitive, B+ (3–4%) above average, B (4–5%) the industry standard, C+ (5–6%) slightly below average, C (6–7%) below average, D (7–8%) high vig, D− (8–10%) very high, F (10%+) predatory.
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, BetAnything). 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 every hour, on the hour (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.