At the age of 18, Pessanha was promoted to black belt in June 2019 by Marcio de Deus.
Pessanha competed at BJJ Bet 2 on August 1, 2021 where she fought multiple-time world champion Tayane Porfirio in the co-main event, narrowly losing by two points.[2] On September 6, 2021, Pessanha won gold in the super-heavyweight division of the IBJJF Pan Championship.[3] She finished the year by winning gold medals in both the super-heavyweight and the absolute division at the IBJJF World Championship on December 12, 2021.[4] Pessanha went 31-5 throughout the course of the year and was awarded "Female Grappler of the Year" at the JitsMagazine 2021 BJJ Awards as a result.[5]
2022 - First double grand slam
Pessanha experienced an unprecedented year of success in 2022, which she started by winning gold medals in the super-heavyweight and absolute divisions at the IBJJF European Championship on February 20, 2022.[6] She then repeated that feat at the IBJJF Pan Championship on April 10, 2022, winning gold in the super-heavyweight and absolute divisions once again.[7] In her third major IBJJF tournament of the year, she won gold in the super-heavyweight and absolute divisions once again at the Campeonato Brasileiro de Jiu-Jitsu. To finish off the year, Pessanha won another pair of gold medals in the super-heavyweight and absolute divisions at the IBJJF World Championship on June 5, 2022 and completed a double grand slam.[8] She finished the year with over 50 wins in competition and not a single loss, earning her "Female Grappler of the Year (Gi)" at the Jitsmagazine 2022 BJJ Awards.[9]
2023 - Second double grand slam
Pessanha started out 2023 in the exact same fashion, winning gold medals in the super-heavyweight and absolute divisions at the IBJJF European Championship on January 29, 2023.[10] She continued her success at the IBJJF Pan Championship on March 26, 2023, by winning both the super-heavyweight and absolute divisions once again.[11] Pessanha then competed at the IBJJF Rio Fall Open on April 1, 2023 where she won five matches in a row and took gold medals in the super-heavyweight and absolute divisions.[12] On May 7, 2023, Pessanha returned to the Campeonato Brasileiro de Jiu-Jitsu and once again won both the super-heavyweight and absolute divisions at the event.[13] Pessanha returned to the IBJJF World Championship 2023 on June 3 and 4, winning both the super-heavyweight and the absolute division once again.[14]
Pessanha competed in the IBJJF Vitoria Open 2023 on August 5, 2023 and won gold medals in both the super-heavyweight and absolute divisions.[15] She then competed at the IBJJF Jiu-Jitsu Con International on September 1, 2023 and won gold medals in both the super-heavyweight and absolute divisions.[16]
Pessanha then competed in a women's heavyweight grand prix at BJJ Stars 11 on September 9, 2023.[17] She defeated three opponents on the same night and won the title.[18] She returned to IBJJF competition at the IBJJF Curitiba Spring Open 2023 on October 8, 2023, winning gold medals in the super-heavyweight and absolute division.[19]
Pessanha competed in the women's super-heavyweight division of The Crown alongside Melissa Stricker, Tayane Porfírio, and Amy Campo on November 19, 2023.[21] She beat both opponents and won the division.[22]
Pessanha won "Female Grappler of the Year (Gi)" at the JitsMagazine BJJ Awards 2023.[23]
2024 - Third double grand slam
Pessanha's coach Marcio de Deus announced that she would be making her no gi debut at some point during 2024.[24]
Pessanha started the competitive year by winning gold medals in both the super-heavyweight and the absolute divisions at the IBJJF Rio Summer Open on January 14, 2024.[25] She then won gold medals in both the super-heavyweight and absolute divisions of the IBJJF European Championship on January 27, 2024.[26] She also won gold medals in both the super-heavyweight and absolute divisions of the IBJJF Pan Championship 2024 on March 24, 2024.[27]
Pessanha won gold medals in both the super-heavyweight and absolute divisions of the IBJJF World Championship 2024 on June 1, 2024.[28] She then won both the super-heavyweight and absolute divisions at the IBJJF Sao Paulo Open on September 15, 2024.[29] Pessanha also won the super-heavyweight and absolute divisions at the IBJJF Rio Spring Open 2024 on October 19, 2024. [30]
Pessanha then competed in the super-heavyweight division at the second edition of The Crown on November 17, 2024.[31] She defeated Mayara Custódio, Tamiris Silva, and Melissa Cueto to win the title for the second time. [32]
Pessanha then made her no gi debut at the IBJJF No Gi World Championship 2024.[33] she won gold medals in the super-heavyweight and absolute divisions.[34]