Dustin Jacoby

Jacoby was born in Fort Morgan, Colorado. He has a twin brother, Darren, who is a former professional mixed martial artist. The brothers began training in taekwondo at the age of four, both picking up wrestling a year later. Dustin trained taekwondo for four years but continued to wrestle until the family moved to Illinois when the brothers were 12.

In Illinois Jacoby started playing basketball, claiming all-state honors while attending Triopia High School. Also playing football in the high school, Dustin had many Division I scholarship offers for both sports, but due to a severe knee injury sustained during his senior year, many of the offers were withdrawn. Subsequently, Jacoby selected Culver-Stockton College, where he played football two years as a quarterback while studying business management before transferring to Quincy University.

GLORY World Series

Jacoby was a last-minute replacement for professional boxer Manuel Quezada at the Road to GLORY USA Light Heavyweight (209 lbs.) Tournament in Tulsa, Oklahoma. He had never competed in a professional kickboxing match before the tournament. He pulled off a major upset, knocking out International Sport Karate Association Heavyweight Champion Randy Blake, fellow mixed martial artist Roy Boughton and 19-0 prospect Brian Collette en route to winning the Tournament Championship. He earned a check for $20,000 and a one-year contract with Glory World Series.

He lost to Michael Duut by TKO after being knocked down three time in round one at GLORY 5: London in London, England, on March 23, 2013.

Jacoby fought at GLORY 9: New York: 2013 95kg Slam in New York City, New York, on June 22, 2013. Rematching Brian Collette in the quarter-finals, he took a close majority decision win. He then faced Danyo Ilunga in the semis and put up a good fight early, but fell behind in rounds two and three as he was hacked at with leg kicks and lost a unanimous decision.

He was set to fight Makoto Uehara at GLORY 12: New York: Lightweight World Championship Tournament in New York City on November 23, 2013, but the fight was switched to GLORY 13: Tokyo: Welterweight World Championship Tournament in Tokyo, Japan, on December 21, 2013. He lost to Uehara by split decision.

He was set to face Robert Thomas in the semifinals of the GLORY 14: Zagreb in Zagreb, Croatia, on March 8, 2014, but Thomas withdrew for undisclosed reasons and was replaced by Alex Pereira.

Early career

During a college offseason, Jacoby took an amateur mixed martial arts bout and got hooked to the sport immediately. After the college he started training at Finney's HIT Squad and turned professional after racking up an amateur record of 9-1.

Ultimate Fighting Championship

Jacoby was expected to make his UFC debut against Brad Tavares on October 29, 2011, at UFC 137, replacing an injured Tim Credeur. However, Tavares himself was forced out of the bout with an injury and replaced by fellow newcomer Clifford Starks. Jacoby lost the fight via unanimous decision.

In his second UFC outing, Jacoby was submitted by Chris Camozzi via guillotine choke on January 28, 2012, at UFC on Fox 2. He was later released from the UFC, following an 0-2 run in the promotion.

Post-UFC career

Jacoby bounced back from his UFC stint with a pair of victories on the regional circuit. He knocked out Billy Johnson in 45 seconds at an Indiana-based Hoosier Fight Club event on June 2, 2012, followed by a doctor stoppage win over Tim Williams for the Cage Fury FC middleweight title.

World Series of Fighting

Jacoby made his WSOF debut at its inaugural event on November 3, 2012, losing to fellow UFC veteran David Branch via unanimous decision.

Bellator MMA

Jacoby stepped in as a replacement for an injured Marcus Sursa to face Muhammed Lawal on September 5, 2014, at Bellator 123. He lost the fight via technical knockout in the second round.

Jacoby faced John Salter on January 16, 2015, at Bellator 132. He lost the fight via submission in the second round.

After the loss to Salter, Jacoby decided to concentrate on his kickboxing career. He eventually returned to MMA in 2019 to participate in Sparta Combat League heavyweight tournament, which consisted of boxing, kickboxing and MMA bouts. Jacoby went on to win the tournament by beating Cody East in the final bout.

Dana White’s Contender Series

On August 4, 2020, Jacoby headlined Dana White's Contender Series Season 4 opening week against Ty Flores. He won the fight via unanimous decision and was subsequently awarded a UFC contract.

Return to the UFC

Jacoby faced Justin Ledet on October 31, 2020, at UFC Fight Night 181. He won the fight via TKO in the first round.

Jacoby faced Maxim Grishin on February 27, 2021, at UFC Fight Night 186. At the weigh-ins, Maxim Grishin weighed in at 210.5 pounds, four and a half pounds over the light heavyweight non-title fight limit of 206 pounds. His bout proceeded at a catchweight and Grishin was fined 30% of his individual purse, which went Dustin. Despite being knocked down twice, Jacoby won a close bout via unanimous decision.

Jacoby faced Ion Cuțelaba, replacing injured Devin Clark, on May 1, 2021, at UFC on ESPN 23. Cuțelaba dominated the first round, however Jacoby came back in the second and third rounds with the fight ending in a split draw. Prior to the bout, Jacoby signed a new four-fight contract with the UFC.

Jacoby was scheduled to face Askar Mozharov on August 28, 2021, at UFC on ESPN 30. However, Mazharov was removed from the event for undisclosed reasons and was replaced by Darren Stewart. Jacoby won the fight via technical knockout in round one.

Replacing Aleksa Camur, Jacoby faced John Allan on short notice on November 6, 2021, at UFC 268. Jacoby won the bout via unanimous decision.

Jacoby faced Michał Oleksiejczuk on March 5, 2022, at UFC 272. He won the fight via unanimous decision.

Jacoby faced Da Un Jung on July 16, 2022, at UFC on ABC 3. He won the fight via knockout in the first round. This win earned Jacoby his first Performance of the Night bonus award.

Jacoby faced Khalil Rountree Jr. on October 29, 2022, at UFC Fight Night 213. He lost the fight via split decision. 14 out of 16 media outlets scored the fight for Jacoby.

Jacoby faced Azamat Murzakanov on April 15, 2023, at UFC on ESPN 44. He lost the fight by unanimous decision.

Jacoby faced Kennedy Nzechukwu on August 5, 2023, at UFC Fight Night 225. He won the fight via TKO in the first round. This win earned Jacoby his second Performance of the Night bonus.

Jacoby faced Alonzo Menifield on December 16, 2023, at UFC 296. He lost the fight via unanimous decision.

Jacoby faced Dominick Reyes on June 8, 2024, at UFC on ESPN 57. He lost the fight by technical knockout in the first round.

Jacoby faced Vitor Petrino on December 14, 2024 at UFC on ESPN 63. He won the fight by knockout via a straight, right punch in the third round. This fight earned him another Performance of the Night award.

Jacoby faced Bruno Lopes on May 31, 2025 at UFC on ESPN 68. He won the fight by knockout in the first round.

Jacoby was scheduled to face Jimmy Crute on February 1, 2026 at UFC 325. However, Crute withdrew due to a ruptured ACL, so the bout was cancelled.

Replacing Uran Satybaldiev who withdrew for undisclosed reasons, Jacoby competed against Julius Walker on February 7, 2026 at UFC Fight Night 266. He won the fight via technical knockout in round two.

Jacoby was scheduled to face Uran Satybaldiev on July 25, 2026 at UFC Fight Night 282. However, Satybaldiev withdrew for undisclosed reasons and was replaced by undefeated promotional newcomer Muhammad Said. Jacoby lost the fight by technical knockout via a head kick and punches in the second round.

Kickboxing

• 2013 Road to Glory USA 95kg Tournament Winner
• 2015 Glory Middleweight (-85 kg/187.4 lb) Qualification Tournament Winner
• 2016 Glory Middleweight (-85 kg/187.4 lb) Contender Tournament Winner

Mixed martial arts

• Cage Fury Fighting Championships
  • CFFC Middleweight Championship (One time)
• Ultimate Fighting Championship
  • Performance of the Night (Three times) vs. Da Un Jung, Kennedy Nzechukwu, and Vitor Petrino
  • Tied (Khalil Rountree Jr. & Magomed Ankalaev) for third most knockouts in UFC Light Heavyweight division history (7)