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.

Best NHL Preseason Odds Today

Q: Can I still compare sportsbooks for NHL Preseason?

No live odds are currently available for NHL Preseason. In the meantime, check out our odds comparison page for other available options, or visit our overall Vig Index for cross-sport rankings.

NHL Preseason Odds Not Currently Available

NHL Preseason does not currently have odds in our data feed. When odds for events are available at sportsbooks they will be listed here. This page updates 3× daily from The Odds API — when sportsbooks begin posting NHL Preseason lines, the full analysis will become available.

In the meantime, check out our odds comparison page for other available options.

NHL preseason betting markets typically emerge in late August and run through early October, with exhibition games beginning around mid-September. The NHL regular season spans from early October through mid-April, followed by the Stanley Cup playoffs extending into June. Preseason odds for the following season often appear immediately after the Cup Final concludes, with sportsbooks posting early Stanley Cup futures, division winners, and regular season point totals while the previous season remains fresh in bettors' minds.

The NHL offseason presents unique betting opportunities that distinguish it from other major sports. Stanley Cup futures offer the most liquid market, but savvy bettors focus on regular season win totals and individual awards like the Hart Trophy (MVP), Vezina Trophy (top goaltender), and Norris Trophy (best defenseman). The NHL Entry Draft in late June creates temporary props on draft position and team selections, while the July 1st free agency period dramatically shifts championship odds. Expansion drafts, when applicable, generate specific prop markets around which players teams will protect or expose.

Preseason betting margins are notably wider than regular season lines, particularly for exhibition games where lineup uncertainty creates softer numbers. The optimal value window typically occurs during training camps in September, when injury news and line combinations remain fluid. Sportsbooks often struggle to properly price teams with significant roster turnover or new coaching systems during preseason, creating opportunities for informed bettors. The biggest odds movements historically stem from blockbuster trades (like the Erik Karlsson deal in 2018), high-profile coaching changes, or star player injuries during training camp. Preseason performance itself rarely justifies major odds shifts, as veteran players often coast while prospects compete for roster spots.

In-Season Sports

These sports have active odds right now:

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Browse NHL Preseason Pages

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.