Brendan Allen beats Christian Leroy Duncan by SUB in round 5 at UFC Vegas 122Brendan Allen beats Christian Leroy Duncan by SUB in round 5 at UFC Vegas 122
Brendan Allen beats Christian Leroy Duncan by SUB in round 5 at UFC Vegas 122
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Brendan Allen beats Christian Leroy Duncan by SUB in round 5 at UFC Vegas 122

MMA News Staff
MMA Editorial Team ·

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Brendan Allen submitted Christian Leroy Duncan in the fifth round at UFC Vegas 122, finishing the middleweight bout at 2:46. The American earned his first professional victory in a fight that went the distance of the scheduled five-round main event before Allen secured the tap.

How it ended

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UFC Fight Night: Allen vs Duncan
Meta APEX · Las Vegas · 11 Oct 2026
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Allen found the finish late in the final frame, locking in a submission at 2:46 of round five. Duncan survived into the championship rounds but ultimately succumbed to the grappling attack as the fight neared its conclusion.

🎟️ Get tickets: Buy tickets to UFC Fight Night: Allen vs Duncan on Ticketmaster →

Updated records

What's next

Allen moves to 1-0 with the submission win and establishes himself in the middleweight division with a patient, methodical performance. Duncan drops to 0-1 in his professional debut, falling short in a gruelling five-round test that showcased his durability despite the setback.

Frequently asked questions

Who won Brendan Allen vs Christian Leroy Duncan?

Brendan Allen defeated Christian Leroy Duncan by SUB in round 5 at UFC Vegas 122.

🎟️ Get tickets: Buy tickets to UFC Fight Night: Allen vs Duncan on Ticketmaster →

How did Brendan Allen vs Christian Leroy Duncan end?

The fight ended by SUB in round 5 at 2:46.

What's Brendan Allen's record now?

Brendan Allen now stands at 1-0.

View the full UFC Vegas 122 card →

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