The final match of a tournament or competition that decides the champion — the deciding round or championship game.
今夜サッカーの決勝戦がスタジアムで行われる。
Tonight the soccer final will be held at the stadium.
決勝戦では両チームが最後まで全力を尽くした。
In the final both teams gave their all until the end.
決勝戦のチケットは発売後すぐに売り切れた。
Tickets for the final sold out shortly after going on sale.