Pepey got his start in martial arts training alongside his brother, Godofredo Claudio, a black belt in Brazilian jiu-jitsu. Pepey had his first professional MMA fight in 2003, at the age of fifteen, winning the fight via submission (armbar) in the first round. Pepey took a three-year hiatus from fighting after making his debut. He returned to active competition in April 2006 with a win over William Couto via submission. Pepey took an 18-month layoff from fighting before coming back with a win over Jesse Santiago via first round submission.
After going 3-0, Pepey again took a lengthy time off from MMA competition. He took nearly three years off for the second time in his career before coming back to earn his TKO victory over Nino Bala on February 6, 2010. Pepey continued fighting regularly, earning another stoppage win on July 3, 2010, in a rematch against Leandro Rodrigues Pontes after Leandro submitted due to strikes. He fought debuting fighter, Fabio Emanuel Rodrigues, at Combat Fighters Championship 1 on September 18, 2010. Pepey dominated the fight throughout the first round, and won the fight after Rorigues did not answer for the second round. Pepey earned two more first round submission wins, bringing his record to 8-0, before trying out for the first installment of The Ultimate Fighter: Brazil.
The Ultimate Fighter
In March 2012, it was revealed that Pepey was selected to be a participant on The Ultimate Fighter: Brazil.[2] Pepey defeated Johnny Goncalves via submission in the first round to move into the Ultimate Fighter house, and become an official cast member.[3]
Pepey was selected as the sixth pick (twelfth overall) by Vitor Belfort, to be a part of Team Vitor. In the first quarter-final fight Pepey was selected to fight Wagner Campos. Pepey won via unanimous decision after two rounds.[4]
After Team Vitor went 7-1, Dana White demanded the teams being scrambled in order to make it a fair contest. Pepey was selected by Belfort to go to Team Wanderlei.[5] Pepey was selected to fight Strikeforce veteran Rodrigo Damm in the first semi-final fight. However, after the doctors removed Damm from the competition, Pepey fought Marcos Vinicius. Pepey won the fight via second round submission, advancing him to the finals of the featherweight tournament.[5]
The bout with Sicilia eventually took place on November 9, 2013, at UFC Fight Night 32.[12] Pepey lost the fight via TKO in the first round.[13]
Pepey faced promotional newcomer Noad Lahat on March 23, 2014, at UFC Fight Night 38.[14] He won the fight in spectacular fashion by landing a flying knee in the first round for a knockout. The win also earned Pepey his first Performance of the Night bonus award.[15]
Pepey faced Dashon Johnson at UFC Fight Night 51 on September 13, 2014.[16] He won the fight via submission in the first round. This win also earned him his second consecutive Performance of the Night bonus award.[17]
Pepey faced Andre Fili on March 21, 2015, at UFC Fight Night 62.[18] He won the fight via submission in the first round with a triangle choke.[19] This win earned him his third straight Performance of the Night bonus award.[20]
On April 4, 2018, it was announced Pepey was a free agent after the UFC opted not to renew his contract.[29]
Post-UFC career
After leaving the UFC, Pepey fought Alex Torres at Brave CF 15 on September 7, 2018. Pepey won the fight via armbar in the first round.[30]
Pepey faced Abdoul Abdouraguimov on February 3, 2022, at Ares FC 3 for the AFC Welterweight Championship.[31] He lost the bout via inverted triangle choke in the first round.[32]