In other televised action, lightweight Quinn Mulhurn scored an upset over UFC veteran Rich Clementi, and Mike Pyle defeated Travis Wiuff in the heavyweight main event.
Lopez, who holds both the King of the Cage light heavyweight and heavyweight straps, defended his heavyweight title in a rematch against one-time Bellator competitor Tyler East. Coming off a split decision over East this past December, Lopez finished definitively this time, forcing a tap out by triangle choke six seconds before the end of round one and extending his win streak to 16.
East's teammate Donald Sanchez fared better, hanging onto his lightweight belt with a TKO against Victor "Joe Boxer" Valenzuela at 4:05 of the fourth round.
After falling short in his bid to win the DREAM featherweight Grand Prix, Cullum has won two straight with King of the Cage. Cullum submitted previously undefeated Joe Coca with a kimura to retain his bantamweight title.
Despite giving up a substantial weight difference, Kyle had better stand up and cardio to beat fellow UFC veteran Wiuff after two rounds. The end came when Kyle landed a right uppercut that appeared just after the sound of the bell. Wiuff stumbled back and collapsed against the cage. Although the finish was controversial, there was no question Kyle was on his way to victory, as Wiuff had already been completely exhausted towards the close of the round.
In the opener, Mulhern put himself on the map with a surprising win against Clementi. Mulhern's specialty was grappling and he played around with the 50/50 and rubberguards in the fight. Mulhern claimed top control and rain down punches for the ref stoppage at 3:09 of round two.