UFC Vegas 117 Preview: Arnold Allen vs. Melquizael Costa

The UFC returns to the Meta Apex in Las Vegas on Saturday, May 16 with a featherweight main event between Arnold Allen and Melquizael Costa, running in direct counter-programming competition with MVP’s Rousey vs. Carano card on Netflix. The main card streams on Paramount+ beginning at 8 p.m. ET, with prelims from 5 p.m. ET.

Allen, ranked seventh at featherweight, enters the main event in the most difficult position of his UFC career. The 31-year-old has lost three of his last four fights, his only win in that stretch coming against Giga Chikadze in 2024. An extended 2025 absence due to injury was followed by a unanimous decision loss to Jean Silva at UFC 324 in January. A loss on Saturday would push Allen toward the edge of contention.

Costa presents the most dangerous possible version of that challenge. The Brazilian is ranked twelfth and riding a six-fight winning streak with four finishes, the most recent being a spinning back kick TKO of Dan Ige in February, the first time Ige had ever been finished inside the Octagon. 

Dooho Choi returns in the co-main event against Daniel Santos in a featherweight matchup that has been rescheduled multiple times, having originally been booked for UFC Perth in September before Choi withdrew, then moved to UFC 328 before being pushed to this card. Malcolm Wellmaker, the standout bantamweight prospect from last year’s Contender Series, faces DWCS signee Juan Diaz in the main card’s most forward-looking fight.

Main card on Paramount+ at 8 p.m. ET: Arnold Allen vs. Melquizael Costa at featherweight over five rounds, Dooho Choi vs. Daniel Santos at featherweight, Malcolm Wellmaker vs. Juan Diaz at bantamweight, Modestas Bukauskas vs. Rodolfo Bellato at light heavyweight, and Timmy Cuamba vs. Bernardo Sopaj at bantamweight.

Preliminary card on Paramount+ at 5 p.m. ET: Jeremiah Wells vs. Nicolas Dalby at welterweight, Tuco Tokkos vs. Ivan Erslan at light heavyweight, Trey Ogden vs. Thomas Gantt at lightweight, Ketlen Vieira vs. Jacqueline Cavalcanti at women’s bantamweight, Cody Brundage vs. Andre Petroski at middleweight, Alice Ardelean vs. Polyana Viana at women’s strawweight, Daniel Barez vs. Luis Gurule at flyweight, and Shauna Bannon vs. Nicolle Caliari at women’s strawweight.