noun
rematch; replay; make-up game
Used in sports and competitive games when a match is replayed, either due to a tie, postponement, or other reason.
雨で中止になった試合の再試合は来週行われる。
The rematch for the game that was canceled due to rain will be held next week.
決勝戦は引き分けだったので、再試合
Since the final ended in a draw, a replay was decided.
Compound of 再 (sai, 'again') and 試合 (shiai, 'match, game').