At the 2010 FINA World Swimming Championships (25 m) in Dubai, Chierighini, along with César Cielo, Nicholas Santos and Nicolas Oliveira, won the bronze medal in the 4×100-metre freestyle relay with a time of 3:05.74, a South American record, beating the U.S.

[14] At the 2014 Pan Pacific Swimming Championships in Gold Coast, Queensland, Australia, Chierighini won a bronze medal in the Brazilian 4×100-metre freestyle relay, along with João de Lucca, Bruno Fratus and Nicolas Oliveira.

[17][18] and in the 4×100-metre freestyle relay (where the team broke the Pan American Games record with a time of 3:13.66, he swam with Matheus Santana, João de Lucca and Bruno Fratus).

[19][20] At the 2015 World Aquatics Championships in Kazan, Chierighini finished 4th in the Men's 4 × 100 metre freestyle relay, along with Matheus Santana, Bruno Fratus and João de Lucca.

[36] At the 2018 Pan Pacific Swimming Championships in Tokyo, Japan, Chierighini won the gold medal in the Men's 4 × 100 metre freestyle relay, along with Gabriel Santos, Marco Ferreira Júnior and Pedro Spajari.

[39] At the 2018 FINA World Swimming Championships (25 m) in Hangzhou, China, Chierighini, along with César Cielo, Matheus Santana and Breno Correia, won the bronze medal in the Men's 4 × 100 metre freestyle relay, with a time of 3:05.15, setting a South American record.

[42] On 18 April 2019, participating in the Maria Lenk Trophy competition in Rio de Janeiro, Chierighini finished the 100-metre freestyle race in 47.68 seconds, a new personal best, and third in the world rankings behind only Vladislav Grinev (47.43) and Kyle Chalmers (47.48).

[43] At the 2019 World Aquatics Championships in Gwangju, South Korea, Chierighini came to try to win an unprecedented Men's 100 metre freestyle medal.

[47] At the 2019 Pan American Games held in Lima, Peru, Chierighini won the gold medal in the Men's 100 metre freestyle, defeating Nathan Adrian, with a time of 48.09.