A Banker bet is a feature available in parlay bets. Next to each selection, you’ll see the letter B, which allows you to mark that selection as a Banker.
What does it do?
If you believe one selection has the highest chance of winning, you can choose it as your Banker.
In this case, a system bet will treat the Banker as guaranteed, and all other events will be combined directly with it.
How does it affect your winnings?
If your Banker wins, your total odds increase.
If your Banker loses, the entire bet slip is lost, regardless of the other results.