Bellator 110 in the quarter-finals of the Featherweight Tournament. Richman lost via unanimous decision. Richman faced Goiti Yamauchi on May 17, 2014 at Bellator 120. He lost the back-and-forth fight via unanimous decision. In the fall of 2014, Richman moved down to the bantamweight division. He debuted at 135 against Ed West at Bellator 126 on September 26, 2014. He won the fight via knockout in the first round. He also made his signature 'walk-off knockout', where he backs off the fighter before referee called stoppage on the fight. Richman faced promotional newcomer Nam Phan at Bellator 131 on November 15, 2014. He won the fight via knockout in the first round. Richman was expected to face former Bellator Bantamweight Champion Eduardo Dantas at Bellator 135 on March 27, 2015. However, the bout was removed from the fight card after Richman suffered an undisclosed injury. The fight eventually took place at Bellator 137 on May 15, 2015. Richman lost the back-and-forth fight by unanimous decision. On June 9, 2015 the California State Athletic Commission confirmed that Richman had failed a post fight drug test following his fight against Eduardo Dantas at Bellator 137. He tested positive for performance-enhancing drugs according to CSAC Executive Director Andy Foster and will be suspended two years and fined $2,500 for the rule infraction. Bare-knuckle boxing BKB Following his suspension from mixed martial arts, Richman ventured into bare-knuckle boxing. At the time, the sport was still illegal in the United States so he traveled to the United Kingdom for his first fight under the BKB promotion on June 9, 2018. Valor Bare Knuckle Richman had his first bare-knuckle fight on US soil at Valor Bare Knuckle 1 on September 21, 2019. His fight with JC Llamas ended in a no contest after an accidental headbutt inflicted a cut above Llamas' eye and rendered him unable to continue. Bare Knuckle Fighting Championship Richman made his Bare Knuckle Fighting Championship debut against Marcel Stamps on April 30, 2021 at BKFC 17. He won by first-round technical knockout via shoulder injury. He next faced Dakota Cochrane on September 10, 2021 at BKFC 21, whom he defeated by second-round knockout. Richman faced David Rickels on April 8, 2022 at BKFC 23, winning by second-round knockout. Interim BKFC Light Heavyweight Champion After three consecutive victories, Richman was set to face Isaac Doolitle for the interim BKFC Light Heavyweight Championship on