> For the complete documentation index, see [llms.txt](https://polymarketguide.gitbook.io/polymarketguide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://polymarketguide.gitbook.io/polymarketguide/markets/structure/combos.md).

# Combos

Polymarket offers **Combos**, which let you combine multiple market positions into a single trade.

### What are Combos?

Each position in a Combo is called a **leg**. For the Combo to win, **every leg must resolve in your favor**. If one leg loses, the entire Combo loses.

Adding more legs can increase the **potential payout**, but also makes the Combo less likely to win.

<figure><img src="https://3511841878-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwmHFi7NV8gmAN3L4jVKb%2Fuploads%2Fm5aLpY0gUL33u1T7ULXq%2Fimage.png?alt=media&amp;token=2f839049-09d1-43e4-9564-3402d62ecde2" alt=""><figcaption></figcaption></figure>

### Combo Legs

Combos can include different types of markets, such as **moneylines, spreads, and totals**.

Be careful when combining legs that **conflict with each other**, since the Combo can only win if every leg resolves in your favor.

<figure><img src="https://3511841878-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwmHFi7NV8gmAN3L4jVKb%2Fuploads%2FadEdYbSUrFy8vhlC2Ltc%2Fimage.png?alt=media&amp;token=e5a8b7a4-df51-4ff4-bdbf-fffbd99af604" alt=""><figcaption></figcaption></figure>

### Combos vs. Parlays

Combos and parlay markets both depend on **multiple outcomes**, but they are structured differently.

**Parlay markets** are created with multiple linked conditions, while **Combos** let you choose and combine multiple market positions into one trade.