Jesse Ronson (born December 24, 1985) is a Canadian mixed martial artist who competed the Ultimate Fighting Championship (UFC) in the Lightweight division.
A professional fighter since 2009, he has previously competed in promotions such as UFC, Aggression FC, Score Fighting Series and TKO Major League MMA, where he was the former Lightweight and Welterweight Champion.
He defeated the champ, Brad Causey (who was coming in at 10-1 into the bout), on April 14, 2012, at AM Ford Night 2012 - Demolition via first-round KO to capture the belt.
At Score Fighting Series 7, Ronson defeated WEC and Strikeforce vet Ryan Healy, and received a shot at the Aggression FC Lightweight Championship on July 5, 2013, against Shane Campbell at AFC 19: Undisputed, where he captured the belt with a second round submission victory.
[5] Ronson faced Francisco Trinaldo on January 2, 2014, at UFC Fight Night: Machida vs. Mousasi in Brazil, but lost again via split decision.
[7] Ronson was released after racking up three straight losses, and went on to fight Dom O'Grady at PFC 3 - Showdown in the Downtown on October 18, 2014, in London, where he dominated and won by way of TKO in the second round.
[10] However, Beaumont pulled out due to injury and Ronson instead faced Matt MacGrath for the XFFC Welterweight title in Grande Prairie, Alberta on December 11, 2015, losing the bout via unanimous decision.
It was announced that Ronson was pulled out of the fight due to being too heavy to safely make Lightweight and was released from UFC.
[9] After rebounding with a first round rear-naked choke against Troy Lamson at BTC 9, Ronson faced Nicolas Dalby, replacing Danny Roberts on July 26, 2020, at UFC on ESPN 14.