Upset

Upset in betting refers to a situation where the underdog defeats the favorite, going against bookmaker odds and public expectations.

For example, if a heavily favored team like Real Madrid (odds 1.30) loses to an underdog like Getafe (odds 8.00), that would be considered a major upset. Upsets occur in all sports and often result in huge payouts for those who bet on the underdog.

Bettors who specialize in value betting look for potential upsets where the bookmaker undervalues the underdog's chances, creating an opportunity for profitable bets.