Reis was born on 20 March 2002 in Manaus, Brazil. Reis started training in Brazilian jiu-jitsu in 2012 after his brother took up the sport. He joined Melqui Galvao as a yellow belt in 2015 earning all his belts from him through the coloured belt divisions then the adult ones; getting promoted to black belt on 13 December 2020, 7 months only after his brown belt grading.[1]
Reis competed in the first ADCC South American Trials on 5 February 2022, winning the 66 kg division and earning an invite to the 2022 ADCC World Championship.[4]
On 25 June 2022, Reis represented Team Brazil at Polaris Squads 4. He drew two matches against Nick Ronan and Nathan Orchard while Team Brazil won the overall event.[5] Reis was then invited to compete against Estevan Martinez at Who's Number One: Ryan v Pena 3 on 7 August 2022.[6] Reis won the match by unanimous decision.[7]
At the 2022 ADCC World Championship on 17–18 September, Reis defeated Ashley Williams on points in the opening round and his teammate Fabricio Andrey by decision in the quarter-final on the first day. He defeated Josh Cisneros on points in the semi-final on the second day before winning the 66 kg division by beating Gabriel Sousa on points in the final.[8]
On 11 December 2022, Reis won a bronze medal at the IBJJF World Championship in the Light-Featherweight division.[9]
Reis competed in the IBJJF Curitiba International Open on 11 and 12 March 2023, winning both the gi and no gi featherweight division.[10] On 26 March 2023, Reis won a gold medal in the light-featherweight division of the IBJJF Pan Championship 2023.[11] He also competed in the Campeonato Brasileiro de Jiu-Jitsu on 7 May 2023, and won gold in the light-featherweight division.[12] Reis competed in the IBJJF World Championship 2023 on 3 and 4 June 2023 and won a bronze medal in the light-featherweight division.[13]
Reis then competed against Jack Sear in a superfight at Honor Submission Challenge Italy on 1 July 2023.[14] He won the match by unanimous decision.[15] Reis then faced Samuel Nagai in a superfight at BJJ Stars 11 on 9 September 2023.[16] He won the match by decision.[17]
Reis competed in a four-man tournament for the Who's Number One featherweight title at Who's Number One 20: Night of Champions on 1 October 2023.[18] He won both matches by unanimous decision and was crowned the champion.[19] Reis then won the no gi featherweight division at the IBJJF Sao Paulo Open 2023 on 19 November 2023.[20]
Reis was booked to defend his Who's Number One featherweight title for the first time against Diego 'Pato' Oliveira at WNO 21: Ryan vs Barbosa on 30 November 2023.[21] He was injured during the match and lost as a result, losing his featherweight title as well.[22]
Reis was slated to represent Team Modolfo in the under 65kg division at AIGA Champions League Final 2023 on 13 and 14 December.[23] He had to withdraw from the tournament due to the injury suffered at WNO 21.[24]
Reis faced Shay Montague in a featherweight match at Who's Number One 23: Meregali vs Rocha on May 10, 2024.[25] He won the match by submission.[26]
Reis competed against Felipe Machado at BJJ Stars 13: Vikings Edition on August 3, 2024.[27] He won the match on points.[28]
Reis received an invite to compete in the under 66kg division of the 2024 ADCC World Championship on August 17-18, 2024.[29] He beat Huaiqing Xu, Fabricio Andrey, Josh Cisneros, and Diego ‘Pato’ Oliveira to win the division.[30]
Reis won a gold medal in the light-featherweight division of the IBJJF European Championship 2025.[31] He then won a silver medal in the light-featherweight division of the IBJJF Pan Championship 2025.[32]
Reis competed against Cleber Sousa in the main event of Majestic BJJ Challenge 5 on April 5, 2025.[33] He won the match on points.[34]
In his ONE debut, Reis faced Shoya Ishiguro on March 8, 2025, at ONE Fight Night 29.[35] At the weigh-ins, Reis weighed in at 139.75 pounds, 4.75 pounds over the flyweight limit and he was fined 40%, which went to Ishiguro.[36][37] Reis submitted Ishiguro with a kimura to win the match.[38]
