This is due to the nature of the -110 fixed odds that are generally used for sides and totals on football and basketball wagers. When betting parlays, point spread parlays have a fairly set pay scale when it comes to return on the number of legs used. You can include sides, totals, game props, payer props or essentially any other offering in your parlay. Going 5-0 would be considered a winner, and pay in the +2000 neighborhood if all bets were sides or totals. For a hypothetical five leg parlay example, going 4-1 is no different than going 0-5, both would be considered a loss. Parlays are two or more bets grouped together to combine for one wager All of which must win in order for you to cash your parlay. Claim Bonus Understanding Parlays – How A Parlay Bet Works