A fight that began with a brief clinch against the cage ended in a swift submission victory for Gustavo Sousa.
Sousa, representing The Brazilian promotion, caught Paddy McCorry in a D'Arce choke during the opening grappling exchange.
The West Belfast fighter's first defence of the middleweight belt he won at Cage Warriors 200 in February was lost after only 62 seconds of action.
After dragging McCorry to the canvas following the clinch, Sousa locked in the submission that decided the contest.
Former featherweight champion Solomon Simon contested a closely fought lightweight bout on the main card opener against Kenny Mokhonoana.
Simon from Ashbourne escaped a guillotine choke attempt and recovered to dominate the ground game before winning by unanimous decision.
Ger Harris controlled much of the opening round against Anderson Soares before the Brazilian secured a second-round triangle choke submission.
On the preliminary card, Belfast's Senan Coakley stopped Louis Bricusse with first-round knees and ground-and-pound.
Coakley's victory marked the first home win of the night after three opening defeats for his team.
No further details regarding future events or specific conditions were provided by the available sources.