What is a bookmaker sandwich?

A bookmaker sandwich, also known as a middle, occurs when a bettor places two bets on opposite outcomes of the same event, ensuring a profit regardless of the result.

For example, in a football match between Team A and Team B, a bettor could place a bet on Team A to win and a simultaneous bet on Team B to win. If Team A wins, the bettor wins the first bet and loses the second. If Team B wins, the bettor wins the second bet and loses the first. Regardless of the outcome, the bettor makes a profit because one bet will always win and cover the loss of the other.

However, it's important to note that bookmakers will adjust their odds to minimize the likelihood of bookmaker sandwiches. They may set different odds for each outcome or impose betting limits to control their exposure to such strategies. To be successful with bookmaker sandwiches, bettors must carefully analyze odds and identify value opportunities where the potential profit outweighs the potential loss.