Kamaru's brother, Mohammed Usman defeated Hamdy Abdelwahab by unanimous decision in the opening bout.
In a controversial result, Tagir Ulanbekov defeated Azat Maksum by unanimous decision of the judges.
Jun Yong Park suffered an illegal blow, but came back and beat Ismail Naurdiev by unanimous decision.
Closing the preliminary card, Seok Hyeon Ko dominated Oban Elliott and won by unanimous decision.
Opening the main card, Muhammad Naimov defeated Bogdan Grad also by unanimous decision.
In an eventful fight, Nazim Sadykhov knocked out Nikolas Motta in the second round.
In a balanced fight, Curtis Blaydes defeated Rizvan Kuniev by split decision.
In the co-main event, Rafael Fiziev defeated Ignacio Bahamondes by unanimous decision.
In the main fight, Khalil Rountree Jr. dominated Jamahal Hill and won by unanimous decision.