Brendan Allen Bio
Brendan Cody Allen (born December 28, 1995) is an American professional mixed martial artist who currently competes in the Middleweight division of the Ultimate Fighting Championship (UFC). A professional since 2015, Allen has also competed for the Legacy Fighting Alliance, where he is a former LFA Middleweight Champion. He carries the ring name “All In” and trains out of Delray Beach, Florida.
Known for his submission skills and well-rounded game, Allen has built a reputation as a durable, finishing middleweight. As of late 2025, he ranked inside the top five of the UFC middleweight division, continuing his rise through one of the most competitive weight classes in the sport.
Early Life and Background
Brendan Cody Allen was born on December 28, 1995, in Beaufort, South Carolina, to James Allen and Michelle Allen of Louisiana. He has an older brother, and his maternal grandparents are from Edmonton, Alberta, Canada, a heritage that has shaped parts of his international fight identity. Allen grew up in a family that encouraged physical activity and competition.
Allen began training in Brazilian jiu-jitsu at the age of 13 after watching a jiu-jitsu class with his brother. In high school, he added wrestling and boxing to his skill set and began competing in Mississippi. He later attended Southeastern Louisiana University, where he majored in criminal justice while continuing to sharpen his martial arts foundation.
Path to MMA
After winning the IMMAF 2015 Amateur Middleweight Championship, Allen decided to turn professional and joined Clementi’s Gladiator Academy to pursue a full-time career in mixed martial arts. His amateur success on the international stage provided the springboard he needed to enter the regional professional circuit with confidence.
Allen began his professional career in 2015, fighting under various promotions across the American South. He built a strong resume quickly, capturing the Legacy Fighting Alliance (LFA) Middleweight Championship twice by defeating Tim Hiley at LFA 50 and Moses Murrietta at LFA 61. Those title runs established him as one of the top middleweight prospects outside the UFC.
Brendan Allen Career
Early Career (2015–2019)
During his early professional years, Allen competed at both welterweight and middleweight, refining his grappling-heavy style. He trained at Clementi’s Gladiator Academy from 2015 until 2017 before moving on to new camps as his career progressed. His two LFA title victories cemented his status as a fighter ready for the biggest stage in the sport.
In 2017, Allen transitioned to Roufusport, where he continued developing his striking and wrestling base through 2020. During this developmental stretch, he also tested himself at light heavyweight on occasion, showing the versatility that would later become a hallmark of his UFC run.
Dana White’s Contender Series Breakthrough (2019)
Allen earned his shot at the UFC when he appeared on Dana White’s Contender Series 20 on July 16, 2019, facing Aaron Jeffery. He won the fight via first-round submission, a performance convincing enough to earn him a UFC contract on the spot. The victory marked the definitive transition from regional standout to major promotional prospect.
Ultimate Fighting Championship (2019–Present)
Allen made his UFC debut on October 18, 2019, at UFC on ESPN 6, stepping in on short notice against Kevin Holland and winning by second-round submission. He followed that with a first-round TKO of Tom Breese at UFC Fight Night 169 in February 2020 and a unanimous decision win over Kyle Daukaus at UFC on ESPN 12. A scheduled bout with Ian Heinisch was canceled twice due to COVID-19, and Allen instead faced Sean Strickland at a 195-pound catchweight at UFC Fight Night 182, losing by second-round technical knockout.
Allen rebounded with a string of submission wins, defeating Karl Roberson at UFC 261, Punahele Soriano at UFC on ESPN 27, and Sam Alvey at UFC Fight Night 200, the latter earning a rear-naked choke victory at light heavyweight. After a setback against Chris Curtis at UFC on ESPN 31, Allen produced one of the most impressive stretches of his career, submitting Krzysztof Jotko, André Muniz, Bruno Silva, and Paul Craig in succession. Three of those performances earned him Performance of the Night bonuses, highlighting his finishing instincts.
Following a unanimous decision loss to Nassourdine Imavov at UFC Fight Night 243 in September 2024, Allen dropped a rematch to Anthony Hernandez at UFC Fight Night 252 in February 2025. He then defeated Marvin Vettori by unanimous decision at UFC 318 in July 2025, a win that earned him a Fight of the Night award. Replacing an injured Anthony Hernandez, Allen scored a fourth-round technical knockout win over Reinier de Ridder in the main event of UFC Fight Night 262 on October 18, 2025, cementing his place among the division’s top contenders.
Kill Cliff FC and VFS Academy Era (2020–Present)
Allen joined Kill Cliff FC in 2020 and spent five years developing his game under the renowned coaching staff at the Lakewood Ranch-based camp. In 2025, he added a training affiliation with VFS Academy in Chicago, expanding his preparation as he approached the upper tier of the middleweight rankings.
Style and Strengths
Allen is a Brazilian jiu-jitsu specialist, holding a black belt under Daniel Wanderley, and his ground game is the foundation of his finishing ability. He pairs his grappling with growing confidence in his striking, which has produced late finishes and durable performances against high-level opposition. His ability to threaten submissions from multiple positions makes him dangerous in every round.
Notable Events and Milestones
Allen’s signature performances include his Contender Series submission of Aaron Jeffery, his debut submission of Kevin Holland, and his fourth-round stoppage of Reinier de Ridder in the UFC Fight Night 262 main event. His collection of Performance of the Night and Fight of the Night bonuses underscores a career built on action-packed finishes.
Brendan Allen Career Wins
Brendan Allen has compiled 27 professional victories across multiple major promotions, including stints in the LFA and the UFC. He has won by knockout, submission, and decision, demonstrating a well-rounded finishing toolkit. His ability to finish opponents has been a defining feature of his professional record.
UFC Highlights
Inside the UFC, Allen has recorded memorable wins over Kevin Holland, Tom Breese, Kyle Daukaus, Karl Roberson, Punahele Soriano, Sam Alvey, Krzysztof Jotko, André Muniz, Bruno Silva, Paul Craig, Marvin Vettori, and Reinier de Ridder. His finishes of Jotko, Muniz, Silva, and Craig came by rear-naked choke, while his victory over de Ridder earned a fourth-round TKO. Several of these performances were recognized with post-fight bonuses.
Other Wins and Performances
Outside the UFC, Allen is a two-time Legacy Fighting Alliance Middleweight Champion, with title wins over Tim Hiley and Moses Murrietta. He also captured the IMMAF 2015 Amateur Middleweight Championship, the amateur accolade that launched his professional career.
Brendan Allen Family
Family Background and Racing Lineage
Allen was raised by his parents, James Allen and Michelle Allen, alongside an older brother. His maternal grandparents hail from Edmonton, Alberta, Canada, a connection that has allowed him to represent Canadian heritage on select fight cards, including UFC Vancouver in October 2025.
Personal Life
Allen is married, and he and his former wife Marcela share two daughters, born in November 2019 and November 2021. He later welcomed a son with his current wife in December 2024, and the family expanded further in January 2026 with the birth of a newborn daughter. His wife also has a 14-year-old son from a previous relationship, and the family resides in Delray Beach, Florida.
2025 Season Performance
The 2025 campaign marked a defining chapter in Allen’s UFC career. After a unanimous decision loss to Anthony Hernandez in February, Allen responded with a statement unanimous decision win over Marvin Vettori at UFC 318 in July, a victory that earned him a Fight of the Night bonus. The performance reaffirmed his standing among the middleweight elite.
Allen then stepped in on short notice to face Reinier de Ridder in the main event of UFC Fight Night 262 on October 18, 2025, producing a fourth-round technical knockout when his opponent was unable to continue. The win pushed him into the top five of the UFC middleweight rankings and set the stage for a potential title push.
Heading into the close of 2025, Allen’s blend of grappling, improving striking, and main-event experience has positioned him as a serious threat in one of the UFC’s most stacked divisions. With momentum on his side and a top-five ranking secured, the outlook for his next bout is among the most compelling of his career.
