What is Multiple in Betting? Multiple Explained in 2 minutes
Fact checked by:
Mike Goodpaster
Last Verified
26/06/2026
A multiple is any bet that combines two or more selections into a single wager. Instead of betting on one outcome, you tie several outcomes together, and all of them need to win for you to collect a payout.
You will see the word "multiple" used as an umbrella term on most US sportsbooks. Doubles, trebles, accumulators, parlays, and system bets are all types of multiples. This page explains what they have in common, how the math works, and when a beginner might want to use one.
What does multiple mean?
When you place a multiple, your stake rides on every selection at once. The sportsbook multiplies the odds of each selection together to produce a combined price. That combined price is higher than any single-game odds would be, which is why multiples are appealing - a small stake can return a large payout if every selection wins. The catch is that one losing selection cancels the entire bet.
The number of selections in a multiple gives it its name. Two selections make a double. Three make a treble. Four or more selections are usually called an accumulator - sometimes shortened to acca - or a parlay in the US. A system bet is a more complex type of multiple that splits your selections into several smaller combinations so that you can still win something even if one selection lets you down.
Real-life example
Say you want to bet on three NFL games on Sunday. You pick the Kansas City Chiefs to win at -110, the Philadelphia Eagles to win at +120, and the Dallas Cowboys to cover the spread at -110. You combine all three into a multiple and stake $10.
To work out the combined odds, convert each American price to a decimal. -110 becomes roughly 1.91. +120 becomes 2.20. The third leg is also -110, so 1.91 again. Multiply them together: 1.91 x 2.20 x 1.91 = approximately 8.03.
Your potential payout is $10 x 8.03 = $80.30, giving you a profit of $70.30 on a $10 stake. If all three teams win, you collect $80.30. If even one team loses, you receive nothing. The higher combined odds reflect that risk - three things all have to go right.
How multiples are used
You will find a multiple builder on nearly every US sportsbook. As you add selections to your bet slip, the sportsbook automatically calculates the combined odds and shows you the projected payout. You can usually build a multiple from games happening on the same day or across different days, in the same sport or across different sports.
Multiples are popular because they make a modest stake feel meaningful. A $5 four-team multiple can return far more than four separate $5 single bets would. That upside, however, comes with greater risk - the sportsbook's built-in margin (called the juice or vig) is compounded across every leg you add. The more selections you include, the harder it becomes to win, and the bigger the edge the sportsbook holds over you. Multiples are best treated as occasional entertainment, not a reliable strategy.
Because "multiple" is an umbrella term, learning the specific types helps you understand what you are actually placing. A
double bet
is the simplest version - two selections, one stake. A
treble
adds a third selection. When four or more selections are combined, most US sportsbooks call it a
accumulator
or a
parlay. If you want protection against one selection failing, a
system bet
covers multiple combinations within the same set of selections, at the cost of a higher total stake. You can compare all of these through
US sportsbooks
that offer parlay and accumulator builders on their bet slips.
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FAQs
Is a multiple the same as a parlay?
A parlay is one type of multiple, but not all multiples are parlays. Parlay is the term most common in the US, while double, treble, and accumulator are terms you will see on sportsbooks that also serve international markets. They all work on the same principle - combine selections, multiply the odds, win only if every leg wins.
How many selections can I put in a multiple?
Most sportsbooks let you add anywhere from two selections up to ten or more in a single multiple. The practical limit is that every extra selection multiplies your risk. Adding many legs can produce eye-catching potential payouts, but the probability of all of them winning drops sharply with each addition.
Do I have to stake the same amount on every selection in a multiple?
No - a multiple is one single bet covering all your selections. You choose one total stake, and that stake is applied to the combined odds. You are not placing separate bets on each game; everything is tied together as one wager with one payout or one loss.
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