Santos made his professional debut with Minas of the Novo Basquete Brasil (NBB) during the 2018–19 season.[1] He averaged 6.7 points, 5.7 rebounds, 2.5 assists, 10.5 efficiency and 23.0 minutes on the court - at only 16 years of age.[2] In the 2018–19 NBB season, because he was still in school and for several other reasons, he was unable to fully follow the adult team's routine.[3]
In the 2019 Basketball Development League (LDB), Gui was the leader of the Minas team. At 17, his averages were 14.5 points, 6.4 rebounds and 2.6 assists in the U-20 championship.[3] In 2019, Gui Carvalho was already part of his club's senior cast. He entered the court in three Minas games in the 2018–19 NBB season – against Joinville, Vasco and Sesi Franca.[2] In the 2019–20 NBB season, Minas' coach Léo Costa granted Carvalho a bigger role with the team.[3]
In April 2021, Santos was named to the World Team for the Nike Hoop Summit. On April 21, he declared for the 2021 NBA draft.[4] In the 2021–22 season, Santos was named the NBB Sixth Man of the Year after he averaged 10.1 points and 5.1 rebounds over the season.[5][6]
On 3 September 2021, Santos scored a career-high 34 points for Minas' U20 team in a 72–77 away win over Flamengo U20.[7]
On 7 November 2023, Santos was signed by the Golden State Warriors to a three-year deal[10] and throughout the next two seasons, he was assigned several times to Santa Cruz.[11][12]
Gui Carvalho was one of the Brazilian representatives at Basketball Without Borders, a camp held by FIBA and the NBA that brought together 64 prospects from Latin America for training sessions in the city of Medellín (Colombia), and also at the FIBA Americas Youth Elite Camp, that happened in Campinas, Brazil at the end of 2018.[2]
According to the Brazilian news site O TEMPO, Carvalho is the Darling of the Crowd (um xodó da torcida).[3]
Gui recalls that especially the support of Minas teammates Alex Garcia and Leandro Barbosa helped him shape his game and reach success.[3]
Personal life
Santos' father, Deivisson, is a former professional basketball player who played five seasons in the NBB.[14] His mother, Lucineide, was also a basketball player.[15]