What I hope to convey via this page is that randomly making selections on parlay cards is a bad way to bet sports and results in a high house edge.
This page address both methods and included three common types of parlay cards.
This can be done either 'off the board' or with parlay cards. In sports betting, the bettor can parlay wins even if the games occur simultaneously. Usually you lose, but when you win, and depending in part on how many events were parlayed, you can win big. In gambling terms, 'parlay' means to bet on at least two events, letting the winnings ride after each win.
On this page Parlay Bets in the NFL Introduction
