Martins started his MMA career in 2011, before that he competed in muay thai achieving an 34-2 record. He fought only for Brazilian-based promotions as Jungle Fight and MMA Rocks. With a record of twelve wins and no losses, Martins signed with the UFC.
Lucas Martins is managed by Wade Hampel of Big Fight Management
Martins made his promotional debut on short notice, replacing an injured Justin Salas against Edson Barboza on January 19, 2013 at UFC on FX: Belfort vs. Bisping. Martins had his first defeat due to TKO (retirement) in the first round.
Martins faced Jeremy Larsen, a contestant of The Ultimate Fighter: Live, on May 18, 2013 at UFC on FX: Belfort vs. Rockhold. Despite taking a significant amount of damage in the first two rounds, Martins knocked Larsen out early in the third round. The performance earned both participants Fight of the Night honors.
Martins next dropped from lightweight to bantamweight and faced promotional newcomer Junior Hernandez on September 4, 2013 at UFC Fight Night: Teixeira vs. Bader. He won the fight via technical submission in the first round.
Martins was expected to face Johnny Eduardo on November 9, 2013 at UFC Fight Night 32. However, both fighters were removed from the card due to injury.
Martins was expected to face Bryan Caraway on February 22, 2014 at UFC 170. However, Caraway pulled out of the bout citing and injury and was replaced by UFC newcomer Aljamain Sterling.
Martins was expected to face Jim Alers in a featherweight bout on July 16, 2014 at UFC Fight Night 45. However, Alers pulled out of the bout citing injury and was replaced by Alex White. Martins won the back and forth fight via knockout in the third round. The win also earned him his first Performance of the Night bonus award.
Martins faced Darren Elkins on October 25, 2014 at UFC 179. Elkins defeated Martins via split decision.
Martins faced Mirsad Bektić on May 30, 2015 at UFC Fight Night 67, replacing Renato Moicano. He lost the fight via TKO in the second round.
Martins faced Robert Whiteford on April 10, 2016 at UFC Fight Night 86. Martins won the fight via split decision. Subsequently, the UFC elected not to renew Martin's contract allowing him to sign elsewhere.Ultimate Fighting Championship
Fight of the Night (One time)
Performance of the Night (One time)