A total listed on a fight represents the total number of completed rounds. The halfway point of a round is at exactly one minute and thirty seconds into a three minute round. Thus, 4½ rounds would be one minute and thirty seconds of the 5th round. The halfway point of a two minute round is at the one minute mark. The halfway point of a five minute round is at the two minutes and thirty seconds mark.
If an over/under boxing total lands on the exact half round total in a fight, the wager will be a push. If the phrase "Fight goes 1:30 round X", and the fight ends at exactly that second of that round, then "Fight goes" will be graded the winner.