Career
Aubin-Mercier is currently signed with the UFC.
Aubin-Mercier made his professional debut in 2011 competing as a welterweight in regional promotions across Quebec. He compiled a record of 4 - 0, finishing all of his opponents by submission in the first round before auditioning for The Ultimate Fighter. The Ultimate Fighter: Nations
In December 2013, it was announced that Aubin-Mercier would be a cast member on The Ultimate Fighter Nations: Canada versus
Australia, representing Canada at welterweight.
Over the course of the show, Aubin-Mercier first defeated Jake Matthews in the quarterfinals via unanimous decision. In the semifinals, Aubin-Mercier went on to defeat Richard Walsh via submission (rear-naked choke) to reach the finals.
Ultimate Fighting Championship
Aubin-Mercier made his official debut facing fellow castmate Chad Laprise in the welterweight finals on April 16, 2014 The Ultimate Fighter Nations Finale. Aubin-Mercier faced Jake Lindsey in a lighweight bout on October 4, 2014 at UFC Fight Night 54.
Aubin-Mercier faced David Michaud on April 25, 2015 at UFC 186.
Aubin-Mercier was expected to face Chris Wade on August 23, 2015 at UFC Fight Night 74. However, Wade pulled out of the bout in late July after sustaining an injury and was replaced by Tony Sims. Aubin-Mercier faced Carlos Diego Ferreira on January 30, 2016 at UFC on Fox 18.
He lost the fight by unanimous decision.
Ultimate Fighting Championship
Performance of the Night (One time).