As a fan, you don’t care if your team wins by a point or 100. A win is a win, though that 100-point win would be a little easier on the nerves.

In sports betting, how much a team wins by is usually all that matters.

The most popular way to bet for the two most popular sports, basketball and football, is with the point spread, also known as the “side.” Most baseball, hockey and soccer bets are on the moneyline, which is betting on a team to win straight up with adjusted odds. Football and basketball have moneyline bets available too, but most people will take the point spread.

The concept can be a bit confusing if you’ve never dabbled in sports betting before.

Why bet with the point spread?

Decimal Style Sports Betting Odds. Decimal style odds are used mostly in Europe, and are pretty easy to understand. To calculate the decimal style odds all you will need to do is simply multiply the amount you wish to wager by the decimal odds shown and you will get your payout. For example it may look something like this.

Using the following simple formula: Stake x Decimal Odds = Total Payout. Another way of thinking about these numbers is that they represent how much a winning ticket will be worth if you bet $1. In order to spot the underdog and favorite, just keep in mind that. The lower the number, the more favored. Usually, we measure the chance in percentages, with the sum of all possible outcomes resulting in 100%. The best football bettors usually have outstanding odds to chance calculation and have no trouble reading betting odds. It is important to remember that in sports betting, the odds don’t add up to 100%. Let me explain that in detail below.

The point spread was created to attract more action on a game. When the San Francisco 49ers are expected to blow out the Arizona Cardinals, it’s not enticing to lay $300 to win $100 on a moneyline. But when the 49ers are 11-point favorites and each side is -110 odds? That’s much easier.

In that example, the 49ers are spotting the Cardinals 11 points before the game starts, at least for bettors. The 49ers have to win by 12 or more points to cover the spread. If the Cardinals win or lose by 10 or less, that side wins the bet. If the game lands on 11, like a 21-10 49ers win, it’s a push and all bets are refunded. If you see a -11 that means that team is favored, and +11 means you’re taking the underdog.

Nothing sharpens your math skills better than trying to figure out how big your lead as a bettor is if you have a 22.5-point basketball underdog that is losing 90-72.

The problem with the point spread can be when a team — which really doesn’t care that you bet the favorite at -11 — has a 14-point lead but gives up a meaningless score at the end to win by only seven points. They’re still happy with the win. You, as a bettor, are not.

Point spreads lead to bad beats

The most infamous example of a bad beat with the point spread probably came in the 2004 Final Four at the NCAA men’s basketball tournament.

Duke was a 2.5-point underdog against UConn. The Huskies rallied late and took a 79-75 lead on a free throw with 3.2 seconds left. The game itself was over; Duke couldn’t score twice in a few seconds. But Duke guard Chris Duhon pulled up for a running 3-pointer just over the half-court line and banked it in at the buzzer. Duke lost 79-78, but bettors who had Duke and 2.5 points won. March Madness is a huge event for bettors, and reports at the time estimated that Duhon’s “meaningless” shot resulted in a $30 or $40 million swing in Nevada. UConn players celebrated at the final buzzer. UConn bettors doubled over in pain. That’s the difference between betting the moneyline and the point spread.

Baseball and hockey have point spreads too, the “run line” in baseball and “puck line” in hockey. It’s generally 1.5 with odds adjusting accordingly. Taking a big baseball favorite at -1.5 runs can make the odds more palatable. Of course, betting the New York Yankees at -1.5 to bring down the odds from -190 to -110 isn’t too fun when they win 4-3 and you don’t cash a bet.

Betting on the point spread is the most common way to wager on sports. And the first time you take a favorite that wins the game but doesn’t cover the spread, you’ll understand every bettor’s heartbreak.

Understanding how betting odds work is crucial for success in gambling, whether you want to win at slots or place bets on sporting events. By knowing the odds of potential bets you can calculate your expected winnings and build an entire strategy for a successful session. Let’s see where betting odds come into action and how to read them.

Betting odds on sports events

Knowing what bet to place on any type of sports events all comes down to the odds. These events can come with different odds based on the bookmaker you place a bet at, so you want to find the ones which offer the best odds for your bet.

How Do Sports Gambling Odds Work

However, you should make sure you understand the odds properly as different bookmakers use various formats of odds for their events. This is so mainly because of geographical differences. In general, there are 3 types of odds you can come across; Fractional, Decimal and American. Let’s see how each one works and how to easily read them.

1. Fractional Odds

Fractional odds are usually found at British or Irish bookmakers. They are also referred to as traditional odds since they were used early on, originally on horse races. These odds are usually shown with a hyphen or a slash, for example, 5/1 or 5-1. This odd is read as five to one. So what does this mean exactly?

A fraction odd of 5/1 means that you stand to win £5 in profit for every £1 you wager. So the total payout from a £1 wager to a 5/1 odd is £6. The same formula is used for bigger wagers and bigger odds. For example, a wager of £100 on an 8/1 odd comes with a total payout of £900. So that’s 8 times what you bet, so it’s 100 x 8 = £800 which is your profit, plus your initial £100 back, given you the total winnings of £900.

This type of odds is still heavily used today, but as we mentioned earlier it’s mostly focused on the UK.

2. Decimal Odds

Decimal odds are also called European odds and they are mostly used in Europe. They are based on the decimal system and are very easy to understand and to work with. With decimal odds, all you need is a calculator and you can easily calculate your profit. This comes especially in handy if you place a single wager and divide it over several events.

The main reason why decimal odds are easy to calculate is that they give you the total expected return. In fractional odds, you need to calculate the profit first and then add your initial wager. With decimal odds, the entire amount is calculated at one go.

For example, you bet $/£100 on a sports event which has decimal odds of 1.60. In order to calculate how much you can win in total all you need to do is multiply your stake with the decimal odds. In this case, it’s 100 x 1.6 which gives us a total of $/£160. As you can see the profit from betting on an event with this odd is $/£60. Just like in fractional odds the higher the odd, the higher the overall payout will be.

3. American Odds

American odds are used pretty much only in the USA and are also known as Moneyline odds. For a person coming from Europe, they can be very confusing, but in fact, they are very simple to read. They are based on placing a $100 bet, so you can easily calculate the end profit based on that bet. The odds for the favourite on an event come with a minus sign, while the odds for the underdog come with a plus sign.

For example, an event can come with +400 for the underdog and -200 for the favourite. So if you bet $100 on the underdog you would make a profit of $400 plus the initial $100 you stake, giving you a total of $500. On the other hand, for the bet on the favourite, you would need to bet $200 in order to win $100, giving you a total of $300.

As you can see the American odds are actually quite easy to read if you’re betting $100. Problems can arise when you want to bet with smaller or bigger amounts and you will need to do some maths in order to calculate the correct odds.

Betting odds on casino games

When we talk about betting odds the first thing that springs to mind is the odds on sporting events. But betting odds are just as important on casino games, especially on table games like blackjack and roulette. In fact, on these games, the odds and payouts are one of the first things you need to learn.

How Do Odds Work In Sports Gambling

The simplest odd pairing on roulette, for example, is betting on red or black, odd or even. This bet comes with a payout of 1:1 or simply if you bet $/£10 and win you will win $/£20 in total. However, the odds of this bet differ depending on whether you are playing European or American roulette. The European version has a house edge of 2.7%, while the American version comes with a house edge of 5.26%. This means that the odds are more in your favour on the European version because of the smaller house edge.

For a more detailed explanation of how betting odds work for Roulette visit our online Roulette page, and for Blackjack visit our guide to playing blackjack.

How Does Gambling Odds Work

Other Betting odds to consider

As you can see odds are pretty easy to read once you know what you’re looking for. It’s imperative to know how to read all types of odds before you embark into the world of betting. You never know which types of odds you can come across at different bookmakers.

Knowing how betting odds work will also come in handy when you want to bet on multiple matches or even on multiple features from a single event. Many bookmakers offer multiple bets on single events so things can start to get a little more complicated when you move away from simply making 1 bet.

Luckily there are ways to reduce the complication because at the end of the day it’s just a calculation. Bookmakers and casinos will often give you a summary of the total you can win, and there are also betting calculators (a good example can be found here https://bookies.com/betting-tools/odds-calculator) which allow you to enter your bets and out comes a total. This is useful as often gamblers will place multiple bets to cover loses, you can’t win them all but you can at least minimise your loss to fight another day.