NBA spread betting requires a team to win by more than a specified margin (or lose by fewer points than the line suggests). Because basketball features high-scoring, back-and-forth action, spreads tend to be tighter than in football — a 7-point spread in the NBA signals a significant talent gap, whereas it's a standard number in the NFL. This makes every possession and late-game decision more impactful against the number. Bettors should pay close attention to rest schedules, back-to-back games, and injury reports that drop close to tip-off, as these factors can shift a spread by several points and create exploitable discrepancies across books.
The vig on NBA spreads typically sits around the standard -110 on both sides, though it can vary meaningfully between sportsbooks — especially on less marquee matchups where books may shade lines differently. Compared to NBA player props or alternative lines, standard spreads generally carry lower juice, making them one of the more efficient markets to bet into. However, during the regular season's heavy slate nights — when books are pricing dozens of games simultaneously — sharp bettors often find the most value by comparing spread prices across multiple operators, where even a half-point difference can significantly impact long-term profitability.
Spreads Vig Rankings
| # | Sportsbook | Vig | Grade | Events |
|---|---|---|---|---|
| 1 | theScore Bet (ESPN Bet) | 2.42% | A | 1 |
| 2 | Pinnacle | 2.42% | A | 1 |
| 3 | LowVig.ag | 2.91% | A | 1 |
| 4 | Bovada | 4.71% | B | 1 |
| 5 | Caesars | 4.71% | B | 1 |
| 6 | BetAnything | 4.71% | B | 1 |
| 7 | Hard Rock Bet | 4.71% | B | 1 |
| 8 | Fliff | 4.71% | B | 1 |
| 9 | BetOnline.ag | 4.76% | B | 1 |
| 10 | BetUS | 4.76% | B | 1 |
| 11 | FanDuel | 4.76% | B | 1 |
| 12 | DraftKings | 4.76% | B | 1 |
| 13 | BetMGM | 4.76% | B | 1 |
| 14 | Fanatics | 4.76% | B | 1 |
| 15 | ReBet | 4.76% | B | 1 |
| 16 | MyBookie.ag | 4.76% | B | 1 |
| 17 | 888sport | 4.76% | B | 1 |
| 18 | betPARX | 4.97% | B | 1 |
| 19 | Bally Bet | 4.97% | B | 1 |
| 20 | BetRivers | 5.42% | C+ | 1 |
Frequently Asked Questions
What is a point spread bet?
A point spread bet levels the playing field by giving the underdog a head start. If the spread is Patriots -7, they must win by more than 7 points for a spread bet to pay. Spreads are the most popular market in football and basketball, which means they attract the most volume and typically have the lowest vig.
Why do spreads usually have lower vig than moneylines?
Spreads attract the highest betting volume because they create a roughly 50/50 proposition regardless of team quality. This balanced action means sportsbooks don't need wide margins to manage risk, resulting in tighter vig — often the best value available.
How does NBA vig compare to NFL?
NBA vig is generally 1–2% higher than NFL because per-game betting volume is lower despite the longer season. However, NBA still attracts enough action to keep vig competitive — especially for popular matchups and playoff games.
When is NBA season?
The NBA regular season runs from mid-October through mid-April, with playoffs extending through June. The All-Star break falls in mid-February. Off-season runs July through October, though futures markets may open earlier.
Does NBA vig differ between regular season and playoffs?
Yes. Playoff games, especially Conference Finals and the NBA Finals, attract significantly more betting volume. This increased liquidity pushes sportsbooks to compete harder on price, and playoff vig is typically 0.5–1.5% lower than regular season.
Which NBA market has the lowest vig?
NBA point spreads usually carry the lowest vig because they attract the most balanced action. Moneylines on lopsided matchups (heavy favorites) often have higher vig because books need wider margins to manage risk on one-sided games.
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 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.