Dirty Boxing Championship 3 got off to a chaotic start when a fighter punched a security guard after a knockout defeat.The shocking scenes erupted in the immediate aftermath of an early prelim fight between Sean Hotusing and Dustin Bailey at middleweight.Dirty Boxing ChampionshipAll hell broke loose outside the ring after Hotusing’s KO loss[/caption]Bailey rendered Hotusing unconscious with a clubbing right hand before following up with some heavy ground and pound to close the show in the second round.However, those weren’t the last punches to be thrown.While Bailey was being interviewed in the ring, Hotusing was caught on camera, sucker punching a security guard outside the ropes.Hotusing was then thrown to the floor before breaking loose of the security guard’s grip and rolling under the bottom rope.What were the Dirty Boxing Championship 3 results?Once the two men were separated and the situation cooled down, the action resumed.The hybrid boxing event, promoted by Jon Jones and Mike Perry, attracted several ex-UFC fighters, who laid it all on the line for the entertainment of a packed-out crowd at The Hangar in Miami, Florida, on Friday night.Former UFC flyweight Tyson Nam made quick work of Ricky Bandejas in the curtain jerker before 30-fight UFC veteran Alex Caceres blasted away Shawn West in the second stanza.The card was then capped off by a trio of consecutive first-round finishes.Bryan Battle, days after being axed from the UFC for missing weight for a second consecutive time, knocked out Derik de Freitas in 56 seconds.This was followed by a shocking upset win for regional MMA fighter James Cannon, who flattened Olympic judoka and inaugural Bellator middleweight champion Hector Lombard in just 19 seconds. View this post on Instagram A post shared by Dirty Boxing Championship (@dirtyboxing)All attention then turned to the main event, where ex-UFC heavyweight Jairzinho Rozenstruik picked up the vacant 265lbs title by obliterating Rakim Cleveland.It was the perfect end to a very successful night for the new combat sports promotion.What are the rules of Dirty Boxing Championship?DBX, which launched at the back end of 2024, has quickly gained attention for its dynamic ruleset.Fights are contested in 4oz MMA gloves, and while strikes with the lower limbs, such as kicks and knees, are not permitted, almost everything else is.Superman punches, spinning backfists, elbows and standing ground and pound are all allowed alongside traditional boxing punches.All contests are scored on a ten-point must system, while fighters must compete in an additional round to determine a winner if the judges can’t split them.