run off
US /rʌn ˈɔːf/
UK /rʌn ˈɔːf/

1.
2.
1.
segunda vuelta, desempate
a final race, contest, or election to decide an earlier tie or to determine a winner from a group of finalists
:
•
The election resulted in a runoff between the two leading candidates.
La elección resultó en una segunda vuelta entre los dos candidatos principales.
•
They will have a runoff to decide the championship.
Tendrán un desempate para decidir el campeonato.
2.
escorrentía, drenaje
water that drains or flows off a surface, such as from land or a building
:
•
Agricultural runoff can pollute rivers and lakes.
La escorrentía agrícola puede contaminar ríos y lagos.
•
Stormwater runoff needs proper management.
La escorrentía de aguas pluviales necesita una gestión adecuada.