Parlay Calculator

How Parlay Odds Work

A parlay combines multiple bets into one. All legs must win for the parlay to pay out. The combined odds are calculated by multiplying the decimal odds of each leg together. While parlays offer bigger payouts, the implied probability drops significantly with each additional leg — a 2-leg parlay at -110 each has only a 25% implied probability, and adding a third leg drops it to about 12.5%.

Are Parlays +EV?

Standard parlays at most sportsbooks carry higher hold than single bets because the vig compounds across legs. However, if you identify legs where your model probability exceeds the market implied probability, a correlated or +EV parlay can be profitable long-term. NumberEdge identifies these edges across every major sport using Monte Carlo simulations.