Cielo clocked a time of 21.91sec to finish behind compatriots Bruno Fratus and Italo Duarte, who posted 21.74 and 21.82 respectively to claim the Olympic places. 

The race was Cielo’s final chance at making an individual event in his home Olympics.

He dropped out of the Brazil Open in December and pulled out of the men’s 100m freestyle final earlier this week having come sixth in the preliminaries.

Etiene Medeiros, who tied the Olympic qualifying time at the Brazil Open, secured a spot in the women’s 50m freestyle after setting an unrivalled time of 24.64 in this event at the Olympic Aquatics Stadium. 

Graciele Herrmann claimed a spot on the team, despite finishing third behind Lorrane Cristina.

Cristina was unable to better her time of 24.92 from the Brazil Open, managing 24.95.

Brazil’s Miguel Valente won the men’s 1500m freestyle in 15min 14.40sec, followed by compatriot Brandonn Cruz in 15:14.58 and Argentina’s Martin Carrizo in 15:18.25.

The top two pushed each other hard with both sneaking under the FINA A-standard of 15:14.77 to qualify for the Brazilian Olympic team.

There were also wins today for Brazil’s Viviane Jungblut, who took the women’s 800m freestyle with a time of 8:40.71, and compatriot Vinicius Lanza, winner of the men’s 100m butterfly crown in 52.75.

Ecuador’s Samantha Arevalo finished second to Jungblut in 8:42.04 as Brazil’s Ana Marcela Cunha completed the podium in 8:46.31.

Argentina’s Santiago Grassi and Brazil's Thiago Pereira posted the same time of 52.77 in the men’s 100m butterfly to finish joint-second.

Also taking top honours was Natalia de Luccas after she came out on top in the women’s 200m backstroke with a time of 2:13.91 - more than three seconds outside the Olympic qualifying time.

China’s Yifan Yang was second in 2:14.14 followed by De Luccas’ fellow countrywoman Florencia Perotti in 2:16.18.

The test event doubled as the Brazilian National Championships.