Brendan Allen and Christian Leroy Duncan meet in UFC Vegas 122 main event

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LAS VEGAS, NEVADA - JUNE 06: (L-R) Brendan Allen punches Edmen Shahbazyan in a middleweight fight during the UFC Fight Night event at Meta APEX on June 06, 2026 in Las Vegas, Nevada. (Photo by Chris Unger/Zuffa LLC) Brendan Allen and Christian Leroy Duncan put their win streaks on the line when they clash in a UFC Vegas 122 headlining bout. The promotion announced Tuesday that Allen (27-7) and Duncan (15-2) are set for the Oct. 10 main event, which takes place at Meta Apex in Las Vegas. View this post on Instagram Allen, currently No. 7 at 185 pounds in the MMA Fighting Global Rankings, bounced back from a two-fight win streak to win three consecutive fights, including an upset victory over Reinier de Ridder in the main event of UFC Vancouver. In his most recent outing this past June, Allen defeated Edmen Shahbazyan via unanimous decision. Duncan, a former Cage Warriors middleweight champion, is also on an impressive streak. Following a 3-2 start to his UFC career, Duncan has gone 5-0, including decisions wins over veterans Jared Cannonier and Roman Dolidze and knockouts over Eryk Anders and Marco Tulio. More bouts for the Oct. 10 event are expected to be made official in the coming weeks.