
Ah Las Vegas, the home of sports betting for decades…and a few other things of course, but you know how it is. What happens in Vegas, stays in Vegas…unless of course, it’s a nice payout thanks to Dimers' best bet choices.
We’ve all seen the gigantic boards with your favorite NFL, NBA and NHL teams all over it. It can be overwhelming and hard to know where to look. That’s why Dimers.com is breaking down how to read Vegas odds!
In short, Las Vegas odds are normal American odds. They're no different to what you see on a sportsbook site or app every time you log in and deposit.
In terms of betting within the United States, odds originated from Las Vegas, which is essentially why they’re called Vegas Odds — it’s a homage of sorts.
Vegas sports betting odds include but are not limited to the moneyline, spread betting, Over/Under, prop bets and other sports betting options, and you see them frequently on sites like this.
MORE: Vegas Odds Calculator and Decimal Converter

Still a bit confused with what it all means and wondering how do Vegas odds work? Don’t worry here’s the breakdown of a Vegas odds board.
Example:
New England Patriots -3.5
Denver Broncos +3.5
If you bet Denver at +3.5, they would need to lose by under 3.5 points — or win outright — to cover the spread.
Conversely, if you bet New England (-3.5) against the spread, the Patriots would need to win by 4+ points to ensure a profit.
Betting the total in any sports game simply means you are wagering on how many points will be scored overall, NOT who will win.
Example:
New York Knicks vs. Detroit Pistons — Over/Under 143.5
The moneyline is the simplest bet to make in sports! Betting the moneyline simply means you are picking a team to win the game outright. While this is a simple bet, it can be difficult to get right. So be sure to read our responsible gambling page for some handy advice about how to bet on Vegas odds safely.
If a team is favored they will have a "-" next to their name. Conversely, the underdog will have a “+.”
Example:
If a team has a -200 moneyline it means you need to wager $200 in order to win $100.
If a team has a “+” moneyline, the goalposts shift. The + tells us how much you would win betting $100, if you win of course.
For example, a +150 moneyline would mean — if successful — a profit of $150 ($250 total).
MORE: Where Do Sports Odds Come From?
Surprise, surprise. Vegas lines are no different from any other moneyline, spread, Over/Under (total) betting selection available.
Most of the lines seen in sports to bet on today still come from Las Vegas oddsmakers, who have had systems in place to determine the betting lines for almost a century.
Like Dimers’ predictive analytics model, which simulates every major sports match 10,000 times to find the best bets for you, Vegas uses factors such as injuries, form, previous matchups and weather forecasts to determine the line.
Often you will hear sportscasters saying Vegas has X team +5, this doesn’t mean Colorado or New Jersey has them at +8. No, they say Vegas because they essentially preside over the betting lines set for sportsbooks in America.
MORE: Where Does the Spread Come From?
Think of it like sportsbook tax. Like any business, sportsbooks want to make a profit no matter what. Often, you’ll see spread or over/under bets with +110 or -110 odds.
The extra $10 does two things; it ensures sportsbooks make a profit and keeps odds even, which is crucial to attracting betting interest to both teams/sides. Another way of viewing the vig/juice is, it’s the price you’re paying for an opportunity to bet on sports.
MORE: Fastest Withdrawal Options For Online Sportsbooks
The overround is very similar to the juice. However, it refers to a situation in which the implied probability for an event exceeds 100%, say 104%.
Example:
CFB National Championship – Moneyline
Alabama Crimson Tide -250 (implied probability of 71.43%)
Clemson Tigers +200 (implied probability = 33.33%)
Implied probability = 104.76%
Of course, the probability of an event being 104% likely is impossible. The extra 3% is the profit margin sportsbooks take to make a little extra.
Now that you know how to read Vegas' sports odds, why don’t you keep the momentum rolling and check out the best sportsbooks in your state. Before you deposit money into your sportsbook account, use Dimers’ exclusive promo codes for a bonus bet and other great rewards.
Don't have a sports betting account? Join a legal online sportsbook and start betting today!
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