Prazeres began training MMA at age 12 when he watched his inspiration, Bruce Lee. His MMA career began in 2000, when he won his debut fight by submission. He went on to win his first six fights straight via stoppage. Prazeres built up an undefeated record competing in local and regional promotions across his native Brazil before signing with the UFC in early 2013.
Ultimate Fighting Championship
Upon signing with the UFC, Prazeres made his promotional debut as a short notice injury replacement on May 18, 2013 against Paulo Thiago at. Prazeres lost the fight by unanimous decision, giving him his first career loss. Prazeres next fought Jesse Ronson on September 21, 2013 at UFC 165. He won the fight by a close split decision. It was his first fight outside of his native Brazil. Prazeres faced Mairbek Taisumov on March 23, 2014 at UFC Fight Night 38, replacing the injured Gleison Tibau. He won the fight by dominant unanimous decision. Taisumov had multiple point deductions and the fight ended up being scored in favor of Prazeres. Prazeres faced Kevin Lee on February 14, 2015 at UFC Fight Night 60. He lost the fight by unanimous decision. Prazeres faced Valmir Lázaro on November 21, 2015 at. He won the fight by split decision. Prazeres was expected to face Tony Martin on July 23, 2016 at UFC on Fox 20. However, Martin pulled out of the fight in early July citing a neck injury and was replaced by promotional newcomer J.C. Cottrell. He won the fight via unanimous decision. Prazeres next faced Gilbert Burns on September 24, 2016 at UFC Fight Night 95. He won the fight via unanimous decision. Prazeres faced Josh Burkman on March 11, 2017 at UFC Fight Night 106. He won the fight via submission in the first round. The win also earned Prazeres his first Performance of the Night bonus award. Prazeres was expected to face Islam Makhachev on September 2, 2017 at UFC Fight Night 115. However, Makhachev pulled out of the fight in mid-August citing injury and was replaced by promotional newcomer Mads Burnell. At the weigh ins, Prazeres missed the lightweight limit of 156 pounds, coming in at 159 pounds. As a result his bout with Mads Burnell was changed to a catchweight and Prazeres was fined 20% of his purse. Prazeres won the fight by submission in the third round. Prazeres faced Desmond Green on February 3, 2018 at UFC Fight Night 125. At the weigh-ins Prazeres weighed in at 161 pounds, 5 pounds over the lightweight non title fightupper limit of 156 pounds. As a result, the bout proceeded at a catchweight and Prazeres was fined 20 percent of his purse to Green. He won the fight via unanimous decision. Prazeres faced Zak Cummings on May 19, 2018 at UFC Fight Night 129. He won the back-and-forth fight via split decision. Prazeres faced Bartosz Fabiński on November 17, 2018 at UFC Fight Night 140. He won the fight via guillotine choke submission in the first round. Prazeres was scheduled to face Ramazan Emeev at UFC on ESPN+ 3. However, on February 4, 2019 it was reported that Emeev pulled out of the fight, citing injury. He was replaced by newcomer Ismail Naurdiev. Prazeres lost the fight by unanimous decision. On February 11, 2020, news surfaced that Prazeres tested positive for anabolic agents in two out-of-competition samples on March 9, 2019. Prazeres was handed a two-year ban, making him eligible to return to competition on March 9, 2021.
