Bad news here is a loss of at least one of the picks, leading to inevitable defeat. You can only succeed if all events were played and/or some of them were voided. Parlay bet / accumulator / combo bets are bids composed of two or more events, each of which affects the overall prospect of the bet.
And you should definitely give it a read in case you’re specifically looking for a leverage that will allow you to multiply your winnings. Almost everyone who gambles applied this strategy at least once.
Winning big on a single bid with parlay bets - that’s what most arbers are looking for.