Luiz Altamir Lopes Melo was born on May 9, 1996 in Boa Vista, Brazil.
At the 2013 FINA World Junior Swimming Championships in Dubai, Melo placed 5th in the 200M butterfly and 8th in the 200M and 10th in 400M Freestyle.
In 2014, at the Summer Youth Olympics held in Nanjing, Luiz was part of a silver medal winning 4x100M Freestyle relay. Individually, he placed 5th in the 200M butterfly and 7th in both the 200M free and 400M free.
In 2015 at the Pan American Games in Toronto, Luiz was part of the gold medal winning 4X200M freestyle relay. The foursome broke the Pan Am Games record with a time of 7:11.15.
The same year at the World Aquatic Championships in Kazan, the Brazilian relay finished 15th in 4X200M freestyle.
In December, at the Palhoca, Luiz earned his Olympic qualifying time in the 400M Freestyle with a time of 3:50.32, just .7 seconds shy of the South American Record.
2016 Rio Olympics
Luiz represented Brazil in the 400M Freestyle.
2018 Short Course World Championships
In Hangzhou, Luiz was a part of the Brazilian 4×200 free relay that shocked the world by not only capturing gold, but smashing the world record in the process. Luiz led the relay off in 1:42.03.