Coulter was born in North Carolina but eventually moved to Texas with his single parent father.[5] Prior to beginning MMA, Coulter played American football for 17 years.[2] He graduated from Plano East Senior High School and continued to Texas A&M University–Commerce from where he dropped out after complete quadriceps tear shattered his NFL dream.[5] He was introduced to mixed martial arts by his childhood friend Muhammed Lawal and began training in Muay Thai in early 2010.[2] Lawal also gave Coulter the nickname "The Daywalker."
Mixed martial arts career
Early career
Coulter made his professional MMA debut in June 2011. Over the next five-and-a-half years, he amassed a record of 8 wins against 1 loss with all of his wins coming via knockout.[2]
Ultimate Fighting Championship
For his UFC debut, Coulter stepped in to replace Dmitry Poberezhets on short notice against Chase Sherman at UFC 211 on May 13, 2017.[6] Coulter lost the fight by knockout in the second round.[7] However, the back-and-forth action earned both participants Fight of the Night honors.[8]
For his second fight in the promotion, Coulter faced debuting Tai Tuivasa on November 19, 2017, at UFC Fight Night: Werdum vs. Tybura.[9] He lost the fight via knockout due to a flying knee in the first round.[10]
In his third fight for the promotion, Coulter was scheduled to face Allen Crowder on June 19, 2018, at UFC 225. However, on May 12, it was announced that Chris de la Rocha has replaced Crowder for undisclosed reasons.[11] Coulter lost the fight via TKO in the second round.
In his fourth fight for the promotion, Coulter moved to Light heavyweight to face Hu Yaozong on November 24, 2018, at UFC Fight Night: Blaydes vs. Ngannou 2. At the weigh-ins, Coulter weighed in at 208 pounds, 2 pounds over the light heavyweight non-title fight limit of 206. He was fined 20 percent of his purse, which went to his opponent.[12] Coulter won the fight by unanimous decision, marking his first decision win in his career and UFC win in his year with the company.[13]
Post-UFC career
After departing with the UFC, Coulter challenged Ike Villanueva for the Fury FC Light Heavyweight Championship at Fury FC 40 on December 13, 2019. After being knocked down early in the fight, he was eventually finished by technical knockout later in the round.[14]
Coulter was scheduled to face Ty Flores at Fury FC 48 on July 25, 2021.[15] This was later changed to Fury FC 51 on September 12, 2021, and was subsequently cancelled.[16]
Coulter was then scheduled to face Christian Larsen for the Unified MMA Heavyweight Championship at Unified MMA 45 on May 27, 2022. However, Coulter withdrew from the fight and was replaced by Grayson Wells.[17]
Bare-knuckle boxing career
Coulter made his bare knuckle debut at BYB Extreme's BYB 16 Dubai Brawl in Dubai, UAE winning by first round TKO over Quentin Domingoes.[18]
