Polymarket US Combos: how they work

A Polymarket US Combo joins 2 to 10 markets into one position that settles once. Every leg has to go your way for the full payout, and one losing leg takes the combo to $0. A leg that can’t resolve settles at its last fair market price.

Checked November 4, 2026. Polymarket US's own rules govern.

What a Combo is

A combo joins 2 to 10 markets into a single position. Each market is a leg, and each leg carries the side you took. It settles once, at one value.

How to build one

Add legs in the Polymarket App, check the quoted payout, and confirm. Legs from the same game are allowed as long as the set is possible and not redundant. Polymarket US doesn't publish a full list of eligible markets, so whether a market can be a leg is something the app shows you.

How it settles

Your payout is the full potential payout multiplied by the value of every leg. A leg that resolves your way is worth $1.00, and a leg that resolves against you is worth $0.00. Once any leg settles against you, the combo is fixed at $0 and settles without waiting for the rest.

A leg that can't resolve at all, such as a walkover, a listed player who doesn't take part, or an event postponed and not replayed, settles at its last fair market price set by Polymarket US's Settlement Committee. It stays in the combo. More on Polymarket US settlement rules.

Combo fees

Combo fills have their own taker fee curve and no maker rebate, and the curve changed on October 28, 2026, so read the current numbers on Polymarket US's fee schedule. Single-market fees are on our Polymarket US fees page.

Combos vs Kalshi combos

Both join several legs into one position, and both depend on every leg. The venues write their own rules, fees and leg lists, so compare them market by market. Our Kalshi combos hub covers that side.

Combo not filling?

Polymarket US's documentation lists these reasons a combo can be rejected:

A leg isn't open and tradable.
A market isn't eligible for combos.
The combo has fewer than 2 legs or more than the maximum.
The set of legs isn't possible, or is redundant.

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Frequently Asked Questions

Does Polymarket US have parlays?

Yes. Polymarket US calls them Combos. A combo joins 2 to 10 markets into a single position that settles once.

How many legs can a Polymarket US Combo have?

2 to 10, per Polymarket US’s Combos FAQ.

What happens if one leg of a combo loses?

The combo pays $0. A leg that resolves against you is worth $0.00, and the payout is the full potential payout multiplied by the value of every leg.

What happens if a player in my combo doesn’t play?

If a leg can’t resolve to Yes or No, for example because a listed player doesn’t take part, it settles at its last fair market price. The leg stays in the combo. It doesn’t rescue a combo that already has a losing leg.

Can you put two legs from the same game in a Polymarket US Combo?

Yes, as long as the set is possible and not redundant, per Polymarket US’s documentation.

Can player props go in a Polymarket US Combo?

The documents we read don’t list which markets are eligible, so check the market in the Polymarket App.

Why isn’t my Polymarket US Combo filling?

Polymarket US’s documentation says a combo can be rejected when a leg isn’t open and tradable, when a market isn’t eligible for combos, when it has too few or too many legs, or when the set isn’t possible or is redundant.

What are the fees on a Polymarket US Combo?

Combo fills use their own taker fee curve and carry no maker rebate. The current curve is on Polymarket US’s fee schedule, and the fee is deducted when the trade executes.