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Combos are multi-leg positions that combine multiple underlying market outcomes into one YES or NO position. Each Combo is defined by its legs and identified by derived YES and NO position IDs. The request for quote (RFQ) system enables quote-based Combo execution between two participants: Polymarket users (requesters) and market makers (quoters). A user creates a Request, which starts an auction among connected market makers. Market makers compete by submitting Quotes: executable prices they are willing to fill.
  1. User creates an unsigned Request for a Combo price.
  2. RFQ system sends the Request to connected market makers.
  3. Market makers submit signed Quotes within the 400 ms submission window.
  4. RFQ system returns the best Quote to the user.
  5. User accepts the Quote by signing the trade within the 10-second acceptance window.
  6. RFQ system requests Last Look confirmation when Last Look is enabled.
  7. Market maker confirms or declines within the 1-second confirmation window.
  8. RFQ system executes the accepted Combo.
  9. User receives execution updates.
  10. Market maker receives execution updates.
  11. Connected market makers receive confirmed trade broadcasts.
Combo position IDs are complementary to CLOB token IDs. A user can trade the market on the CLOB or can include the market as a leg of a Combo.

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Build With Combos

Integrate Combos into market maker systems or apps that request executable prices.

Market Makers

Build a market maker integration for pricing and executing Combos.

Requesters

Coming SoonRequest Combo quotes and execute accepted trades.