final vote; run-off ballot
Used in elections or contests when no candidate wins a majority in the first round, and a second round is held between the top candidates.
大統領選挙は決選投票にもつれ込んだ。
The presidential election went to a run-off vote.
決選投票の結果、新人候補が当選した。
As a result of the final vote, the new candidate was elected.
Since the candidates were tied, a run-off vote was held.
The top two candidates advanced to the run-off vote.
She won in the run-off vote.