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ENSV

Exchanges and prediction markets

Commission models and effective odds for Betfair, Smarkets, Matchbook, Polymarket, Kalshi and more, each with calculators pre-set to the venue.

  • Betfair Exchange
    Betting exchange
    5% on net winnings
  • Smarkets
    Betting exchange
    2% on net winnings
  • Matchbook
    Betting exchange
    4% on net winnings
  • Betdaq
    Betting exchange
    2% on net winnings
  • Polymarket
    Prediction market
    2% on net winnings
  • Kalshi
    Prediction market
    7% on net winnings
  • Sporttrade
    Betting exchange
    2% on net winnings
  • Prophet Exchange
    Betting exchange
    3% on net winnings
  • Novig
    Betting exchange
    No commission
  • ProphetX
    Betting exchange
    2% on net winnings
  • Pinnacle
    Sharp bookmaker
    No commission
  • Circa Sports
    Sharp bookmaker
    No commission

What the pages cover

Each venue page explains its commission model, shows what a range of prices is worth after commission, works through a bookmaker-versus-exchange hedge, and links to calculators pre-set for that venue. Sharp bookmakers with no commission are included as reference lines.

A caution on the figures

Every commission rate on this site was entered as a placeholder without checking the venue's current schedule. Rates change by country, product and tier. Treat each one as a starting point and confirm it in your account.