The last match on the card. The most important spot on any wrestling show. Main eventing WrestleMania is the peak of the profession. In theory, the main event is the match fans pay to see. In practice, it's determined by politics, storyline importance, and whoever the champion is. 'Main event' is also used loosely to describe top-tier status — 'he's a main eventer' means he belongs in the title picture regardless of card position.
"She just main-evented WrestleMania. First women's match to close the show. That's history."