Olivier Aubin-Mercier

The Ultimate Fighter: Nations In December 2013, it was announced that Aubin-Mercier would be a cast member on The Ultimate Fighter Nations: Canada vs. 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. Laprise won the fight via split decision.

Aubin-Mercier faced Jake Lindsey in a lightweight bout on October 4, 2014, at UFC Fight Night 54. Aubin-Mercier won the bout via submission in the second round, which also earned him a Performance of the Night bonus.

Aubin-Mercier faced David Michaud on April 25, 2015, at UFC 186. He won the fight via submission in the third round.

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. He won the fight via unanimous decision.

Aubin-Mercier faced Carlos Diego Ferreira on January 30, 2016, at UFC on Fox 18. He lost the fight by unanimous decision.

Aubin-Mercier next faced Thibault Gouti on June 18, 2016, at UFC Fight Night 89. He won the fight via submission in the third round.

Aubin Mercier faced Drew Dober on December 10, 2016, at UFC 206. He won the fight via submission in the second round.

Aubin-Mercier was expected to face Leonardo Santos on June 3, 2017, at UFC 212. However the bout was scrapped on May 18 as both fighters were removed from the card.

Aubin-Mercier faced Anthony Rocco Martin on September 16, 2017, at UFC Fight Night 116. He won the back-and-forth fight via split decision.

Aubin-Mercier was scheduled to face Gilbert Burns on February 24, 2018, at UFC on Fox 28. However, on February 21, 2018, the bout was scrapped as promotional medical officials deemed Burns would be unsafe to meet lightweight upper limit of 156 Ibs limit upon his arrival at the fight week.

Aubin-Mercier faced Evan Dunham on April 7, 2018, at UFC 223. He won the fight by TKO in the first round. This win earned him a Performance of the Night bonus.

Aubin-Mercier faced Alexander Hernandez on July 28, 2018, at UFC on Fox 30. He lost the fight via unanimous decision.

The bout with Gilbert Burns eventually took place on December 8, 2018, at UFC 231. Aubin-Mercier lost the fight via unanimous decision.

As the last fight of his prevailing contract, Aubin-Mercier faced Arman Tsarukyan on July 27, 2019, at UFC 240. He lost the fight via unanimous decision.

Professional Fighters League It was announced on early March, 2020, that Aubin-Mercier signed with Professional Fighters League. However, in March, he pulled out of the bout due to injury.

Aubin-Mercier faced Marcin Held at PFL 4 on June 10, 2021. He won the fight via unanimous decision, earning his first victory in the promotion.

Aubin-Mercier was scheduled to face Natan Schulte on August 13, 2021, at PFL 7. However on August 4, it was announced that Schulte had to pull out of the matchup and was replaced by Darrell Horcher. At weigh-ins, Horcher weighed in at 159.25 pounds, missing weight by 3.25 pounds. The bout proceeded at catchweight and he was fined 20% of his purse, which went to Aubin-Mercier who won the bout via unanimous decision.

2022 season Aubin-Mercier faced Natan Schulte on April 23, 2022, at PFL 1. He won the close bout via split decision.

Aubin-Mercier faced 2021 PFL Lightweight Champion Raush Manfio on June 17, 2022, at PFL 4. He won the bout via unanimous decision.

Aubin-Mercier faced Alex Martinez in the Semifinals off the Lightweight tournament on August 5, 2022, at PFL 7. He won the bout via unanimous decision.

Aubin-Mercier faced Stevie Ray in the finals of the Lightweight tournament on November 25, 2022, at PFL 10. Aubin-Mercier won the fight by knockout in the second round and won the 2022 PFL Lightweight Tournament.

2023 season Aubin-Mercier started off the 2023 season against Shane Burgos on April 14, 2023, at PFL 3. He won the fight by unanimous decision.

Aubin-Mercier faced debutant Anthony Romero on June 23, 2023 at PFL 6. He won the fight via knee knockout in the third round.

In the semi-finals, Aubin-Mercier faced Bruno Miranda at PFL 9 on August 23, 2023. He won the bout via TKO stoppage at the end of the second round.

In the final, Aubin-Mercier faced Clay Collard on November 24, 2023 at PFL 10. He won the bout by unanimous decision to win his second Lightweight tournament.

After the win, Aubin-Mercier announced his retirement from MMA.

Championships and accomplishments Professional Fighters League 2022 PFL Lightweight Championship 2023 PFL Lightweight Championship Ultimate Fighting Championship Performance of the Night (Two times) vs. Jake Lindsey and Evan Dunham MMA Fighting 2023 Third Team MMA All-Star

Mixed martial arts record Win

Clay Collard Decision (unanimous) PFL 10 (2023)

Washington, D.C., United States Win

Bruno Miranda TKO (punches) PFL 9 (2023)

New York City, New York, United States Win

Anthony Romero KO (knee) PFL 6 (2023)

Atlanta, Georgia, United States Win

Shane Burgos Decision (unanimous) PFL 3 (2023)

Las Vegas, Nevada, United States Win

Stevie Ray KO (punch) PFL 10 (2022)

New York City, New York, United States Win

Alex Martinez Decision (unanimous) PFL 7 (2022)

New York City, New York, United States Win

Raush Manfio Decision (unanimous) PFL 4 (2022)

Atlanta, Georgia, United States Win

Natan Schulte Decision (split) PFL 1 (2022)

Arlington, Texas, United States Win

Darrell Horcher Decision (unanimous) PFL 7 (2021)

Hollywood, Florida, United States Win

Marcin Held Decision (unanimous) PFL 4 (2021)

Atlantic City, New Jersey, United States Loss

Arman Tsarukyan Decision (unanimous) UFC 240

Edmonton, Alberta, Canada Loss

Gilbert Burns Decision (unanimous) UFC 231

Toronto, Ontario, Canada Loss

Alexander Hernandez Decision (unanimous) UFC on Fox: Alvarez vs. Poirier 2

Calgary, Alberta, Canada Win

Evan Dunham TKO (knee and punches) UFC 223

Brooklyn, New York, United States Win

Anthony Rocco Martin Decision (split) UFC Fight Night: Rockhold vs. Branch

Pittsburgh, Pennsylvania, United States Win

Drew Dober Submission (rear-naked choke) UFC 206

Toronto, Ontario, Canada Win

Thibault Gouti Submission (rear-naked choke) UFC Fight Night: MacDonald vs. Thompson

Ottawa, Ontario, Canada Loss

Carlos Diego Ferreira Decision (unanimous) UFC on Fox: Johnson vs. Bader

Newark, New Jersey, United States Win

Tony Sims Decision (unanimous) UFC Fight Night: Holloway vs. Oliveira

Saskatoon, Saskatchewan, Canada Win

David Michaud Submission (rear-naked choke) UFC 186

Montreal, Quebec, Canada Win

Jake Lindsey Submission (inverted triangle kimura) UFC Fight Night: MacDonald vs. Saffiedine

Halifax, Nova Scotia, Canada Loss

Chad Laprise Decision (split) The Ultimate Fighter Nations Finale: Bisping vs. Kennedy

Quebec City, Quebec, Canada Win

Jason Meisel Submission (rear-naked choke) Challenge MMA 22

Montreal, Quebec, Canada Win

Jordan Jewell Submission (rear-naked choke) Slamm 1

Montreal, Quebec, Canada Win

Daniel Ireland Submission (rear-naked choke) Ringside MMA 13

Montreal, Quebec, Canada Win

Teoscar Hernandez Submission (rear-naked choke) Ringside MMA 12

Montreal, Quebec, Canada

Mixed martial arts exhibition record Win

Richard Walsh Submission (rear-naked choke)

April 2, 2014 (airdate)

Win

Jake Matthews Decision (unanimous) February 27, 2014 (airdate)