5.1 Match Format

A standard match consists of 3 rounds of 2 minutes each, with a 1-minute rest period between rounds (Article 7.1.1). If the score is tied after the 3rd round, a 4th round of one minute is contested as the Golden Round, after a one-minute rest following the 3rd round (Article 7.1.1).

Source: Article 7.1.1, Article 15, Article 7.1.2

Send this to your friend — argument over.