Felipe Meligeni Alves was the defending champion but withdrew before his semifinal match with

Luciano Darderi Luciano Darderi (born 14 February 2002) is an Italian tennis player. Darderi has a career high ATP singles ranking of World No. 124 achieved on the 13 November 2023. He also has a career high doubles ranking of World No. 104 achieved on 8 August ...

Juan Pablo Ficovich Juan Pablo Ficovich (born 24 January 1997) is an Argentine professional tennis player. Ficovich has a career high ATP singles ranking of World No. 125 achieved on 25 July 2022. He also has a career high ATP doubles ranking of World No. 364 ach ...

won the title after defeating Darderi 6–3, 7–5 in the final.

Seeds

Draw

Finals

Top half

Bottom half

References

External links

Main drawQualifying draw
{{DEFAULTSORT:2021 Sao Paulo Challenger de Tenis - 1 São Paulo Challenger de Tênis - 1 2021 Singles