NBA betting stands out for its sheer volume of opportunities and market depth. With 30 teams each playing 82 regular-season games, followed by a multi-round playoff format, the schedule delivers a near-daily stream of action from mid-October through June. The sport's high-scoring nature and possession-driven pace create liquid markets across spreads, totals, moneylines, player props, and in-game wagering. Because scoring is frequent and possessions are plentiful, oddsmakers can set tight lines — but the variance inherent in three-point shooting and pace fluctuations means there's consistent edge to be found for sharp bettors who track the right variables.
Vig on NBA markets tends to be among the tightest in major American sports, particularly on spreads and totals for nationally televised or marquee matchups. Standard hold on a side or total typically falls in the 4.5–5% range at full-juice books, but competitive sportsbooks regularly push that closer to 3% or lower. The sheer betting volume on the NBA incentivizes books to compete on price, which benefits bettors who compare lines across multiple operators. Margins can widen, however, on player props, alternate lines, and lower-profile early-season games where books face less competitive pressure to sharpen their numbers.
Seasonal patterns matter significantly. Early-season lines — particularly the first two to three weeks — tend to carry slightly wider margins as books and bettors alike calibrate to roster changes, new coaching schemes, and rotation adjustments. Vig tightens as the season progresses and market efficiency increases, with the sharpest pricing typically found during the heart of the regular season (January through March) and the NBA Playoffs. Injury news is the single most impactful factor on NBA odds; star players in basketball influence outcomes far more than in sports like football or baseball, and lines can swing 3–5 points on a single absence. Rest days, back-to-back scheduling, and home/away splits also carry meaningful predictive value — road teams on the second night of a back-to-back, for instance, consistently underperform relative to the spread.
Cross-Sport Vig Comparison
NBA averages 4.63% vig across 13 sportsbooks. Here's how that compares to other active sports:
| Sport | Avg Vig | vs NBA |
|---|---|---|
| NBA | 4.63% | — |
| CFL | 4.62% | 0.01% higher |
| NCAAF | 4.62% | 0.01% higher |
| NFL | 4.64% | 0.01% lower |
| NFL Preseason | 4.67% | 0.04% lower |
Vig Rankings
| # | Sportsbook | Avg Vig | Grade | ML | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|
| 1 | LowVig.ag | 3.14% | B+ | — | 2.89% | 3.38% | 3 |
| 2 | FanDuel | 4.52% | B | 3.99% | 4.82% | 4.75% | 10 |
| 3 | Bovada | 4.52% | B | 4.05% | 4.76% | 4.76% | 8 |
| 4 | theScore Bet (ESPN Bet) | 4.53% | B | 4.16% | 4.70% | 4.73% | 8 |
| 5 | DraftKings | 4.60% | B | 4.33% | 4.72% | 4.73% | 34 |
| 6 | Caesars | 4.60% | B | 4.33% | 4.73% | 4.75% | 13 |
| 7 | BetMGM | 4.62% | B | 4.36% | 4.75% | 4.76% | 8 |
| 8 | Fanatics | 4.63% | B | 4.37% | 4.74% | 4.76% | 3 |
| 9 | BetOnline.ag | 4.75% | B | — | 4.74% | 4.76% | 3 |
| 10 | betPARX | 4.88% | B | 4.73% | 4.94% | 4.95% | 8 |
| 11 | Bally Bet | 4.88% | B | 4.73% | 4.94% | 4.95% | 8 |
| 12 | 888sport | 5.07% | C+ | 5.29% | 4.97% | 4.96% | 8 |
| 13 | BetRivers | 5.48% | C+ | 5.51% | 5.48% | 5.46% | 8 |
Frequently Asked Questions
Which sportsbook has the lowest NBA vig?
LowVig.ag currently has the lowest vig at 3.14%, earning a grade of B+.
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.
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.