Round 1 - Oliveira works low kicks early, but Lentz gets the takedown. He stands over Oliveira and just misses getting clipped with an upkick. Lentz attacks the legs with kicks but then drops to the mat to avoid his opponent attempt to get back up. Lentz stands again and just avoids an upkick before he moves to full guard. Lentz quickly frees a leg, delivers a punch, and then stands again. Oliveira quickly gets back up too. The fighters trade kicks. Oliveira looks for knees, and Lentz nearly catches one. Oliveira returns to low kicks. Lentz nearly catches another knee, delivers some punches, takes a few more knees, and resets. The fighters trade low kicks, and Oliveira pops him with a knee and drops Lentz. He delivers a follow-up punch. Lentz appears about out, but he quickly defends as Oliveira locks on a guillotine and rolls to torque it. He continues rolling, but Lentz won't tap, and he frees himself while in top position. As the fighters get to their feet, Lentz then gets his own guillotine and drops to the mat. The crowd goes wild over the turn of events. Lentz torques the chock from top position but doesn't have the angle. The fighters get to their feet, and both look spent. They continue winging punches. Oliveira gets the takedown, works from the top, and delivers a big punch. It's a great first round, but Oliveira takes it 10-9.
Round 2 - Oliveira works low kicks and then tries a leaping knee. Lentz catches him and sends him to the mat but must avoid a triangle-choke attempt. Oliveira sweeps and take top position as Lentz looks for the guillotine from his back. He's simply stalling with the choke, though, and Oliveira gets free and then blasts Lentz with a clearly illegal knee that the ref simply ignores. The crowd lays into him. Oliveira lands another knee once Lentz is back up, takes the fight to the mat, takes the back, and then secures the fight-ending rear-naked choke. Oliveira gets the win tonight, but I doubt this victory stands once it's appealed.
Charles Oliveira def. Nik Lentz via submission (rear-naked choke) - Round 2, 1:48