corporate-sponsored sports tournament
A sports competition that carries the name of a sponsoring company, such as the 'ABC Cup' or 'XYZ Championship'. The sponsor's name is part of the event title.
Next month, a corporate-sponsored tournament hosted by a TV station will be held.
This corporate-sponsored competition is sponsored by a major beverage manufacturer.
Compound of 冠 (かんむり, 'crown' or 'title') and 大会 (たいかい, 'tournament' or 'convention'), referring to a tournament that bears the sponsor's name like a crown.