noun
three-game match; best-of-three contest
Used in sports, games, and competitions to refer to a match decided by winning two out of three games or bouts. Also used for a rubber in card games.
決勝は三番勝負で行われた。
The final was played as a best-of-three match.
このカードゲームでは三番勝負を一つの単
In this card game, a rubber is treated as one unit.