Featherweight contender Arnold Allen has been booked to face Melquizael Costa in the main event of UFC Vegas 117 on May 16 in Las Vegas, as noted in recent schedule reports from AgentMMA. The matchup gives Allen a chance to reaffirm his status near the top of the 145-pound rankings, while Costa gets an opportunity to break into contention with a high-profile headlining slot. Staged at the UFC Apex, the event closes out the promotion’s run of shows across Australia and the United States for the first three weeks of May. The result could influence matchmaking for future title eliminators or contender bouts in the featherweight division later in 2026.
