2020: Early career, Junior debut Candiotto started playing tennis at a very young age and played in many youth tournaments. In her teenage years, she participated in several competitions organized by the
International Tennis Federation (ITF), where she had the opportunity to compete against some of the world's best young tennis players.
2021 In 2021, she was awarded a wildcard for the main draw of the women's singles event at the
2021 Aberto da República, a tournament with a prize pool of $60,000. She lost in the first round to
You Xiaodi.
2022: South American Games bronze medal; first professional title In 2022, she competed in the
girls' singles event at the
2022 Australian Open, losing in the first round to
Tereza Valentová with scores of 3–6, 2–6. In the
girls' doubles event, she partnered with
Li Yu-yun but was defeated in the first round by
Charlotte Kempenaers-Pocz and
Taylah Preston with scores of 1–6, 6–1, [6–10]. At the
2022 Junior Wimbledon, she entered the main draw of the
girls' singles event as a
lucky loser, but lost her opening match to the top seed and eventual champion
Liv Hovde, with a score of 4–6, 1–6. In October, she competed in the women's singles event at the
2022 South American Games and reached the round of 16 after defeating Agustina Cuestas. However, she was eliminated in the next round by
María Herazo González with a score of 5–7, 4–6. She also competed at the doubles competition, where she partnered with Juliana Munhoz. Together they defeated the Paraguayan duo of
Leyla Risso and
Paulina Franco Martinessi to win the bronze medal. In November 2022, she was awarded a wildcard for the main draw of the women's singles event at the
2022 Aberto da República, a ITF W60 tournament in
Rio de Janeiro. At the end of 2022, she won her first ITF doubles title. She also won another championship with Lodikova in Antalya, two weeks later, in March. At the ITF W25 event, the 2023 São Paulo Tennis Classic, Candiotto won her eighth doubles title of the season, in the city of
Mogi das Cruzes.
2024: WTA 125 debut and first win; first professional singles title In May 2024, Candiotto played in Spain and won her biggest title to date at an ITF W35 event in
Monzón. In November 2024, Candiotto was invited to train with the
Brazil Billie Jean King Cup team, as part of a program supporting Brazilian tennis players on the international circuit. In December, Candiotto won her first professional singles title at the W15 ITF event, the 2024 São Paulo Tennis Classic, at the city of
Mogi das Cruzes, defeating Camila Romero at the final. At a
WTA 125 event in December, the
2024 MundoTenis Open, contested in
Florianópolis, she was given a
wildcard to participate alongside
Luiza Fullana.
2025: First WTA 125 title on doubles; WTA Tour and BJK Cup debuts In March 2025, Candiotto was called by the
Brazilian Tennis Confederation to participate at the
Billie Jean King Cup in April and join the
Time Brasil BRB for the first time in her career. Candiotto made her WTA Tour debut as a wildcard, on home soil, at the
2025 SP Open where she defeated
Valeriya Strakhova recording her first singles WTA Tour win. In October 2025, Candiotto won the doubles title of an
ITF W35 tournament at the Paineiras do Morumby club in São Paulo, Brazil. She played alongside fellow Brazilian
Nauhany Vitória Leme da Silva and defeated the duo of Argentinian
Jazmín Ortenzi and Colombian
María Paulina Pérez at the final. This was her 13th ITF doubles title. In November, Candiotto played at a WTA 125 in Cali, Colombia, partnering with fellow Brazilian
Laura Pigossi and winning the final in straight sets against
Ekaterine Gorgodze and
Nicole Fossa Huergo. This was the first doubles title at a WTA 125 tournament for Candiotto. In December, Candiotto won her 4th doubles title of the year in
Lima, Peru on an ITF W15 tournament. At the final, Candiotto and Argentinian
Luciana Moyano defeated
Julia Konishi and Jamaican
Najah Dawson by 6–4, 6–1.
2026: First Billie Jean King Cup matches In April 2026, Candiotto represented
Brazil at the
Billie Jean King Cup in
Ibagué, Colombia for the
Americas Zone Group I stage of the tournament. Although she had previously been called up to the team, this marked her first match played in the competition. Her debut match came in doubles, where she partnered with
Victoria Barros to defeat the
Chilean pair of
Antonia Vergara Rivera and
Jimar Gonzalez in straight sets, helping Brazil secure a 3 X 0 victory in the tie. On the next day, Brazil faced
Argentina and won by 2 X 1, but Candiotto was not selected to play. On the third day of competition Brazil faced
Peru. Candiotto played on the doubles match once again, once more alongside
Victoria Luiza Barros. The duo won in two sets, against
Dana Guzmán and
Romina Ccuno, helping Brazil to win the tie by 3 X 0. With that result, Brazil secured the first place on the group and would face Mexico on the decisive tie. Candiotto did not play against
Mexico and with wins by
Nauhany Vitória Leme da Silva and
Gabriela Cé, the team secured the victory over Mexico by 2 X 0 and advanced to the playoffs of the competition. == Playing style ==