Marcelo Chierighini

2010–12

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, South American record, leaving behind the U.S. team.

He was at the 2011 World Aquatics Championships in Shanghai, China, where he finished 9th in the 4×100-metre freestyle. At the 2011 Summer Universiade, he got a silver medal in the 4×100-metre freestyle relay.

2012 Summer Olympics

He swam at the 2012 Summer Olympics in the 4×100-metre medley relay, in which he ranked 15th, and the 4×100-metre freestyle relay, in which he ranked 9th.

2013–16

In April 2013, at the Maria Lenk Trophy in Brazil, Chierighini made the seventh best time of the year in the 50-metre freestyle (21.88 seconds) and fourth in the 100-metre freestyle (48.11 seconds). At the 2013 World Aquatics Championships in Barcelona, he finished 7th in the 4×100-metre freestyle, along with Fernando Santos, Nicolas Oliveira and Vinícius Waked. In the 100-metre freestyle, he equaled his personal record in the semifinal, with a time of 48.11 seconds, ranking third for the final, behind Adrian (47.95) and Feigen (48.07). He finished 6th in the final, with a time of 48.28. In the 50-meter freestyle, Cherighini reached the semifinals, where he beat his personal record with a time of 21.84 seconds. However, due to the high level of proof (thirteen swimmers made times below 22.0, better than London 2012 when ten swimmers did it), he finished 10th, staying out of the final by 10 hundredths of a second. In the 4×100-metre medley, he finished 12th, along with Leonardo de Deus, Felipe Lima and Nicholas Santos.

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. He also finished 4th in the 4x100-metre medley relay, along with Guilherme Guido, Felipe França and Thiago Pereira, 8th in the 50-metre freestyle, and 9th in the 100-metre freestyle.

At the 2015 Pan American Games in Toronto, Canada, Chierighini won the gold medal in the 4×100-metre medley relay (where he broke the Pan American Games record with a time of 3:32.68, along with Guilherme Guido, Felipe França Silva and Arthur Mendes). and in the 4×100-metre freestyle relay (where he broke the Pan American Games record with a time of 3:13.66, along with Matheus Santana, João de Lucca and Bruno Fratus).He also won a bronze medal in the 100-metre freestyle.

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. César Cielo didn't swam the final - despite being participating in the championship, he was feeling shoulder pain on this day. In the Men's 100 metre freestyle, Chierighini made his best individual participation in the World Championships, finishing in 5th place, with a time of 48.27. He also finished 10th in the Men's 4 × 100 metre medley relay.

2016 Summer Olympics

At the 2016 Summer Olympics, he went to three finals: in the Men's 100 metre freestyle, finishing 8th; in the Men's 4 × 100 metre freestyle relay, finishing 5th; and in the Men's 4 × 100 metre medley relay, finishing 6th.

2017–20

At the 2017 World Aquatics Championships in Budapest, in the Men's 4 × 100 metre freestyle relay, the Brazilian team composed by Chierighini, César Cielo, Bruno Fratus and Gabriel Santos achieved a historic result by winning the silver medal, the best Brazilian result of all time at World Championships in this race. Brazil beat the South American record of 2009, still in the super-suits era, with a time of 3:10.34, just 0.28 from the US team. The last medal of Brazil in this race, in Worlds, had been obtained in 1994. Chierighini did the fastest split of the entire field (46.85), and the third-fastest split ever in a textile jammer. He also finished 5th in the Men's 100 metre freestyle final, repeating his best time (48.11), and 5th In the Men's 4 × 100 metre medley relay, along with Henrique Martins, João Gomes Júnior and Guilherme Guido.