Dustin Poirier
Dustin “The Diamond” Poirier is a former UFC interim lightweight champion, a Deep Waters analyst and co-founder of The Good Fight Foundation.
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Dustin’s happenings, collected from public sources, plus his backstory and Starbook, where fans write.
Known for
UFC
UFC
UFC on Paramount+
The Good FightOverview
- From
- Lafayette, Louisiana
- Known as
- The Diamond
- UFC debut
- January 2, 2011
- Breakout title
- 2019 interim UFC lightweight champion
- Now
- Retired fighter, UFC analyst and charity co-founder
Mini bio
How it started.
Poirier grew up in Lafayette, Louisiana. He says he first looked into boxing, then found MMA training in his hometown and fell in love with it. His first fight was in 2007, and he turned professional in 2009.
Finding his place.
He made his UFC debut in 2011. In 2019, he beat Max Holloway over five rounds to win the interim lightweight title. A second-round TKO of Conor McGregor at UFC 257 in 2021 became another defining win.
Beyond the cage.
Dustin and his wife Jolie built The Good Fight Foundation from auctions of his fight gear. Their first auction supported 3,000 meals through Second Harvest Food Bank; the project became a registered nonprofit in 2018. He also developed Poirier’s Louisiana Style hot sauce, named the official hot sauce of UFC in 2022.
A new chapter.
He retired after facing Holloway in Louisiana in July 2025. In April 2026, he joined Deep Waters, sharing fight analysis and stories alongside Din Thomas, Jorge Masvidal and Chris Weidman.
Creditschronological, newest first
UFC
- 2025UFC 318: Holloway vs Poirier 3BMF title challenger; final career bout
- 2021UFC 257: Poirier vs McGregor 2Winner by second-round TKO
- 2019UFC 236: Holloway vs Poirier 2Interim lightweight title winner
Broadcasting
- 2026Deep WatersUFC analyst
Projects
- 2022Poirier’s Louisiana StyleBranded hot sauce named official hot sauce of UFC
- 2018The Good Fight FoundationCo-founder with Jolie Poirier
Awards
Quotes
Wake up determined. Go to bed satisfied.Dustin Poirier, UFC athlete Q&A
His answer to the UFC profile’s prompt about training.
Trivia
- Tim Credeur gave him the nickname “The Diamond” when he reached the WEC.
- He holds a black belt in Brazilian jiu-jitsu.
- Before fighting, he collected aluminum cans and picked pecans, according to his UFC Q&A.
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