The worked example
Four picks, each at +100 (evens): the combined return multiplies to 16× your stake, $10 becomes $160 including stake. The honest half: every leg carries the book's margin, and multiplying four margined prices compounds the house edge, which is why parlays are the most profitable product sportsbooks sell. Bet them for the sweat, size them like entertainment.
Parlays and the offers
DraftKings' welcome splits into multiple bonus bets — parlay ammunition by design. And insurance-style offers (BetMGM, Caesars) pay out only when the first bet loses, which a long parlay is admittedly good at. Structures and fine print live on our bonus pages.
The mistake everyone makes
Adding legs because they 'feel free.' Each leg multiplies the ways to lose along with the payout. The six-legger that dies on leg six isn't bad luck, it's the math you ordered. Bonus bets are the right fuel for the wild ones: the stake was never yours.