This FAQ covers everything you need to know about the epic rivalry between Dustin Poirier and Justin Gaethje. From their fighting styles and records to their most memorable battles, we break down the key facts for beginners and hardcore fans alike.

Who are Dustin Poirier and Justin Gaethje?

Dustin Poirier and Justin Gaethje are two of the most exciting and durable fighters in the UFC lightweight division. Poirier is a former interim UFC lightweight champion from Louisiana, USA, known for his boxing and heart. Gaethje is a former WSOF champion and also a former interim UFC lightweight champion from Arizona, USA, famous for his leg kicks and relentless pressure. Both have fought many of the best lightweights in the world and have a combined history of multiple Fight of the Night bonuses.

Understanding their backgrounds is important because their contrasting personalities and fighting styles made their rivalry so compelling.

When did Poirier and Gaethje first fight?

The first Poirier vs Gaethje fight took place on April 14, 2018, headlining UFC on Fox 29 in Glendale, Arizona. It was a wild back-and-forth battle that saw Poirier recover from an early knockdown and stop Gaethje via TKO in the fourth round. This fight is widely considered one of the greatest fights in UFC history and was awarded Fight of the Night. For beginners, this bout is the starting point of their rivalry.

What happened in the second Poirier vs Gaethje fight?

In the second fight, at UFC 291 on July 29, 2023, Justin Gaethje scored a devastating second-round head-kick knockout over Dustin Poirier to win the ceremonial BMF title. The two fighters had split their series 1-1 after this rematch. This result was surprising to many because the first fight was a grueling war, but Gaethje's precision and power made the difference. The finish won Performance of the Night and was a strong candidate for Knockout of the Year.

How do Poirier and Gaethje's fighting styles compare?

Poirier is primarily a slick boxer with heavy hands, good combinations, and a dangerous submission game, while Gaethje is a high-pressure wrestler-turned-standup specialist known for brutal leg kicks and explosive power. Poirier tends to break opponents down with volume and cardio, whereas Gaethje looks for early knockout opportunities and often fights in a linear, forward-moving style. This stylistic contrast is what makes their matchups so entertaining.

Why is the Poirier vs Gaethje rivalry so highly regarded?

The Poirier vs Gaethje rivalry is highly regarded because both fighters consistently deliver violence, heart, and elite-level mixed martial arts. Their first fight is an all-time classic, and their second fight featured a spectacular knockout, showing different aspects of their skills. Additionally, they have similar career trajectories and have shared opponents, which makes the comparison especially interesting to fans. It's a modern rivalry built on respect and mutual excellence.

Who won the Poirier vs Gaethje series so far?

As of 2026, the Poirier vs Gaethje series is tied 1-1, with Dustin Poirier winning the first fight by TKO in round 4 and Justin Gaethje winning the second fight by knockout in round 2. Because the series is even, fans and analysts often debate who the better overall fighter is. A potential third fight would be the decisive tie-breaker. This is a common discussion among MMA enthusiasts.

  • First fight (April 2018): Poirier won by TKO in round 4
  • Second fight (July 2023): Gaethje won by KO in round 2

What makes Gaethje's leg kicks so dangerous against Poirier?

Gaethje's leg kicks are dangerous because he throws them with tremendous power and accuracy, specifically targeting the lead leg to limit his opponent's movement. In the second fight, Gaethje used his leg kicks to set up the head-kick knockout, creating a reactive pattern in Poirier's defense. For a fighter like Poirier, who relies on stance switching and footwork, leg kicks can drastically reduce his ability to attack and defend. This is a key tactical weapon in their matchups.

Who is the better fighter: Poirier or Gaethje?

There is no definitive answer to who is the better fighter, as the two have split their two fights with each winning by stoppage. Poirier may have a more well-rounded game and greater resilience, while Gaethje has proven he has a higher finishing upside with his power and kicking game. Ranking one above the other depends heavily on personal bias and how you weight their victories and losses. In terms of career achievements, both are future Hall of Famers.

Final Thoughts

In the end, Poirier vs Gaethje represents one of the greatest rivalries in recent UFC history. Two fighters with identical records and massive finishes, their legacy is defined by their willingness to trade in the pocket and push each other to the limit. For beginners, this matchup offers a perfect template for understanding MMA striking and fight IQ.

Whether you favor Poirier's boxing or Gaethje's power, there is no doubt that a third meeting would be one of the most anticipated fights in the sport. Until that happens, the debate about who is the stronger lightweight will continue to rage on in forums and social media.