UFC Tonight: What Time UFC 331 Starts and How to Watch

UFC tonight: the direct answer

For U.S. viewers, tonight’s scheduled event is Crypto.com UFC 331: Van vs. Pantoja 2. It is set for Saturday, September 19, 2026, at Crypto.com Arena in Los Angeles. The main card begins at 9:00 p.m. EDT, and the UFC lists Paramount+ as the U.S. streaming service. See the official event page.

The headline is a flyweight championship rematch

The main event is more than a familiar-name matchup: UFC describes Joshua Van vs. Alexandre Pantoja 2 as a flyweight championship rematch, with Van identified as champion and Pantoja as the former champion. That gives the card a clear center of gravity—the key question is who leaves with the flyweight title, not simply which fights are on the schedule.

The co-main event is Arman Tsarukyan vs. Mauricio Ruffy in a lightweight bout. UFC’s event announcement supplies the stakes behind the headline, while the event page identifies the rest of the card.

Which start time matches what you want to watch?

The UFC’s U.S. schedule divides the night into three blocks:

• 5:30 p.m. EDT: Early prelims; the listing also names UFC Fight Pass for this block.
• 7:00 p.m. EDT: Prelims.
• 9:00 p.m. EDT: Main card on Paramount+.

The practical distinction matters. 9:00 p.m. EDT is the start of the main card, not a separately published walkout time for Van–Pantoja. Because that matchup is the main event, it is the card’s headline bout rather than its opening fight. The official schedule gives block start times, so viewers should use 9:00 p.m. as the main-card marker rather than treating it as an exact start time for the title fight. Check the UFC watch guide.

For a quick answer to UFC tonight: it is UFC 331, centered on a flyweight title rematch, with the main card scheduled for 9:00 p.m. EDT on Paramount+.