Brock Lesnar won the UFC Heavyweight Championship.
Brock Lesnar . In November 2008 , Lesnar defeated Randy Couture to become the UFC Heavyweight Champion . Lesnar is a five-time world champion in WWE , a one-time heavyweight champion in the UFC , a one-time heavyweight champion in NJPW , and a one-time heavyweight wrestling champion in the NCAA , the only person in history to win a championship in each of those organizations .