three-bout contest; three-game match; best-of-three
Used in sports and martial arts for a match decided by winning two out of three bouts or games.
The final was held as a three-bout contest.
This match is a best-of-three.
一本勝負 is a single-bout contest, while 三本勝負 is a three-bout contest.
五本勝負 is a five-bout contest, while 三本勝負 is a three-bout contest.
Compound of 三 (three), 本 (counter for bouts), and 勝負 (contest).