A "tournament" is a competition between lots of people or teams. Usually one person or team is named as the champion at the end of the tournament.
To talk about a tournament happening, use the phrase "be held", followed by the time of the tournament, the location, or both:
It's held between late March to early April each year.
Where is next year's tournament being held?
Aside from tournaments, other events that are "held" include:
- a hearing