Allen vs Costa main event set for May 16 Fight Night

Arnold Allen vs. Melquizael Costa is locked in as the main event for the May 16 UFC Fight Night card in Las Vegas. CBS Sports’ 2026 schedule lists the matchup as a five‑round featherweight headliner, continuing Allen’s push to remain a contender at 145 pounds while Costa looks to make a major rankings leap. The event will take place at the UFC’s Meta APEX facility and air on Paramount+. With featherweight in flux around the title picture, the winner will be well positioned for a high‑profile opponent later in the year. The full undercard is expected to feature additional rising prospects.