What Is a Treble Bet?

Last updated: 28/08/2026

Three selections. One bet. All three have to win.

That's a treble, and it's about as complicated as it gets. The word does double duty in football, where "the treble" means a team winning three trophies in a season, but on a betslip it means something much simpler.

Trebles work in betting the same way a double does, just with a third leg attached.

What is a treble bet?

A treble bet combines three selections into a single bet, with the odds multiplied together. All three have to win for the bet to pay out. If any one of them loses, the whole bet loses. It's the betting sense of the word, not the football sense of winning three trophies in a season.

How does a treble bet work?

Your stake goes on the first selection. If it wins, the whole return rolls onto the second, then onto the third. Nothing is paid out until all three are in, which is why a treble pays more than three singles for the same total stake and why one losing leg takes the other two down with it.

Three legs multiply the return, and they multiply the ways the bet can lose.

One from a real Midnite betslip, with three Match Result legs.

A £10 stake returns £598.50 if all three win. Prices are illustrative and will have moved since, but the arithmetic is exactly how the betslip does it.

How do you work out a treble?

Multiply the decimal equivalent of each price, then multiply by your stake.

Those three legs: 11/8 is 2.375 in decimal, 11/1 is 12, 11/10 is 2.1.

2.375 × 12 × 2.1 = 59.85

Multiply by a £10 stake and you get £598.50 back, which is £588.50 profit plus your tenner. The slip shows 58.85/1 because fractional quotes profit only while decimal includes the stake.

The betslip works all this out before you confirm. Betting odds explained and how decimal odds work cover both formats.

What happens if one leg is void?

The treble becomes a double.

If a selection is voided, say a match is postponed or a runner withdrawn, that leg settles at 1.00 and drops out. It doesn't count as a loser and it doesn't sink the bet. Your treble settles as a double on the two remaining legs, at whatever those two prices multiply to. Two void legs leaves you with a single.

Treble, double, accumulator: what's the difference?

Only the number of legs.

• A double is two selections.
• A treble is three.
• A four-fold, five-fold and so on name themselves.
• An accumulator is the general term, though people usually mean four or more legs when they say acca.

So a treble is an accumulator with three legs, and "trebles" in betting just means bets of that shape. Only the name changes. Every one of them needs every leg to win. The accumulator guide is the fuller picture, and multiples across every sport live on the acca hub.

One distinction worth clearing up while we're here, because it trips up plenty of people early on. A treble combines selections from different matches. A bet builder combines selections from the same match. Both multiply odds. They're different bets.

What is a straight-line treble?

A straight-line treble is just a single treble on three selections: one bet, three legs, all three needed.

The "straight-line" bit only exists to distinguish it from the trebles inside full-cover bets. A Lucky 15 contains four separate trebles among its fifteen bets. Those are trebles too, but you didn't place them individually.

Straight-line treble means the plain version.

How many trebles are in a set of selections?

More than most people expect, and this is where full-cover bets come from.

Four selections give four different trebles. Six give twenty. Eight give fifty-six.

That's the arithmetic full-cover bets are built on: rather than picking which trebles to back, they cover every combination at once, at a stake to match. Our Lucky 15 explainer covers what that costs. [Pending publish: /blog/what-is-lucky-15-bet]

What is a treble in horse racing?

A treble bet in horse racing works exactly as it does anywhere else. Three selections, all three to win, odds multiplied.

The racing wrinkle is each-way. An each-way treble is two trebles side by side, one on the win and one on the place, so it costs double. The place half pays when your horses are placed without winning, at whatever terms apply to each race. What each-way means covers those terms, and the card is over on Midnite's horse racing.

Selections taken at SP settle at the returned starting price, which changes what the total odds come out as. [Pending publish: /blog/what-does-sp-mean-in-horse-racing]

Placing a treble on Midnite

Add three selections and the Treble appears in the multiples section. That's the word Midnite uses, so look for Treble rather than "3-fold". Enter your stake and the slip shows total odds and returns before you confirm.

Trebles work across sports. Football, racing, tennis, and you can mix sports inside one treble.

Worth saying plainly, because full-cover bets like the Lucky 15 and Yankee are horse racing only at Midnite. Want a racing multiple that covers singles too? That's the full-cover route. Want three legs across football and anything else? A treble does it.

Cash out is available on eligible multiples before they go in-play, and footy accumulator tips is the related read for football.

FAQs

How many trebles are there in four selections?

Four. Each treble leaves one selection out, and with four selections there are four ways to do that. Five selections give ten trebles, six give twenty.

Do all horses have to win in a treble?

Yes. All three legs have to win for a treble to pay out. The one exception is a void leg, which drops out and turns the treble into a double on the two that remain.

How do you work out a treble bet?

Convert each price to decimal, multiply the three together, then multiply by your stake. Three legs at 2.375, 12 and 2.1 come to 59.85, so a £10 stake returns £598.50. The Midnite betslip does this for you and shows the total before you confirm.

Can you win on a treble?

Yes, if all three legs win. One losing leg loses the bet, no matter how the other two went, and a treble is harder to land than any of its three legs on its own.

Three legs, one bet

So that's the treble bet explained: three selections in a single bet, odds multiplied, all three needed.

A void leg turns it into a double. Four selections contain four different trebles, which is where full-cover bets start. And the betslip calls it a Treble, across every sport on site.

The multiplication cuts both ways, so read the big number as what three correct calls would pay, not what the bet is worth.

Have a look across Midnite football and horse racing. Decide your stake on the basis that all three could go wrong, and the Responsible Play collection is there if you want limits in place first.

18+, please gamble responsibly.

About the author

Jordan Willmott is Sportsbook Experience Manager at Midnite, where he leads the team behind sportsbook operations and propositions, from bet settlement and price boosts to the range of markets and specials available across every sport on site.

He has spent 13 years in sportsbook and trading, previously in similar roles at BetVictor, Sporting Index and Sky Betting & Gaming.

He writes here on how markets are built, made available and settled once the whistle goes.

Connect with Jordan on LinkedIn.