Thaísa Grana Pedretti
Thaísa Grana Pedretti is a Brazilian professional tennis player. She has career-high rankings of No. 379 in singles, achieved on 2 March 2020, and of No. 332 in doubles, achieved on 25 November 2024.
Early life
Grana Pedretti was born in São Paulo. She started playing tennis at the age of 7 at the Mesq club in São Bernardo. As of late 2023, they started working together with Brazilian former tennis player Flávio Saretta as a coach.Junior career
In 2017, she competed in the junior events of the French Open, Wimbledon, and the US Open.Professional career
2013
Pedretti primarily competes on the ITF Women's World Tennis Tour.Pedretti competed in her first ITF tournament in June 2013.
2021
In December 2021 She played in the final of the $15k tournament in Curitiba. She could not finish the match because he had a migraine attack at the beginning of the first set.2023
In December 2023, she won the singles and doubles titles at the ITF W15 tournament in Buenos Aires, Argentina. The following week, She played in the final of the ITF W15 tournament in Córdoba.2024
In February 2024, she played in the doubles final at the ITF W50 tournament held in Mexico City. In November 2024 Partnering Diae El Jardi, Grana Pedretti won her first major ITF W50 tournament Austin in United States, defeating Whitney Osuigwe and Alana Smith in the final.2025: WTA Tour debut
In September 2025, Pedretti played at the qualifying rounds of the inaugural SP Open, a WTA 250 in São Paulo, Brazil. She reached the final round but lost to Yasmine Mansouri, therefore she was unable to secure a spot on the main draw. This was her debut at the WTA Tour.In October she played at an ITF W35 tournament at the club Paineiras do Morumby in São Paulo, Brazil. At the doubles draw she partnered with fellow Brazilian Luiza Fullana, reaching the semifinals but losing to Jazmín Ortenzi and Maria Paulina Perez Garcia.
In November she played at an ITF W15 tournament, this time in Mogi das Cruzes.
In the doubles draw she played alongside compatriot Luiza Fullana and together they reached the final, where they faced Najah Dawson from Jamaica and Marjorie Souza from Brazil and won in straight sets. This was her fourteenth professional doubles title.
ITF Circuit finals
Doubles: 23 (14 titles, 9 runner–ups)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Dec 2016 | ITF La Paz, Bolivia | W10 | Clay |  |