Round 1: Barnett wastes not time getting to the clinch position and getting the fight to the ground. He works inside Guelmino’s guard. Barnett stands and lands a right hand. Guelmino goes for a leg and gets back to his feet. Barnett stays on him and takes him back down. Guelmino stands, but Barnett drags him back to the canvas, landing in the mount position. Barnett applies an arm triangle choke. Guelmino taps to the choke.
The official time of the submission was 2:11 of the opening round.