Fights usually consist of three three-minute rounds, with a one-minute break between each round.

Just a few rules and two three-minute rounds in which to demonstrate superior skill within them.

An hour session, which costs $75, is divided into three-minute rounds with one-minute rest periods.

Bouts are limited to five three-minute rounds separated with two-minute breaks.

The duration of the fight was set at eight, three-minute rounds.

The agreed upon time limit for the match was five three-minute rounds.

We were only 30 seconds into the first of two three-minute rounds.

In the Olympic tournament, a bout consists of three three-minute rounds.

In 1867, he established the rules, which include the required use of boxing gloves, the ten-count, and three-minute rounds.

A match consists of five three-minute rounds and takes place in a 6.1 meter square boxing ring.