Yap in betting is a system bet with 4 selections that includes 15 separate bets. Its structure is the same as a Lucky 15.

How does it work?

A Yap includes:

• 4 singles;

• 6 doubles;

• 4 trebles;

• 1 fourfold.

Because of that structure, the bet does not rely only on all four selections winning. Even if some of the picks lose, the slip can still return money or show a profit. The term Yap is less common than Lucky 15, so it is easier to think of it as an alternative name for the same system.