There are exceptions, primarily with US friendly betting sites offering fixed odds that short the payout, and a couple sites that offer promotions that make the odds better. The vast majority of internet betting sites offer true odds parlays. In this article I’ll discuss parlay (accumulator) betting in great depth including their dynamics, warnings about short pays, who offers the best odds, and then conclude with parlay betting strategy. If all are correct a payout is issued for the accumulated odds. If at least one selection is incorrect the entire wager is a loss. In sports betting, a parlay (also known as an accumulator) is a wager that combines multiple individual wagers into a single bet and requires all those wagers are successful for the single bet to win.