On the last day of the Maria Lenk Trophy in Rio de Janeiro, Thiago Pereira became the first Brazilian to crack 54sec over 100 backstroke with a 53.86 victory that delivered his third gold of nationals after triumphs in the 200m and 400m medley.

American visitor Eugene Godsoe took silver in 54.57, the man who had set the national textile best at 54.20 in heats, Daniel Orzechowski, taking bronze in on 54.69, his heats time inside the FINA A cut for London 2012 by 0.2ec.

Pereira's new best is 7th best Brazilian performance but the best ever in textile on a list headed by a 53.24 national mark set by Guilherme Guido at 53.24 in 2009. Guido cracked 54 six times in shiny suits but today finished 6th in 55.52, while the other Brazilian who broke 54sec before a ban on booster bodysuits, Gabriel Mangabeira (on a championship record of 53.81 in 2009), finished 7th in 56.86.

Coached by Alberto Pinto, Pereira threatened his shiny best of 54.21 with a 54.25 effort in heats before setting a new standard for himself and Brazil in the final.

Two will race for Brazil in the 200m butterfly after Leonardo De Deus backed up his 200m back victory with a second gold in 1:55.70 over Kaio Almerida's 1:56.51.

De Deus, 20, crushed his textile best last year with a 1:55.55 effort in heats of the 200m butterfly at world titles in Shanghai but slumped to 1:57.58 in semis. Today's effort is his second best ever and gives him another top 15 performances entry on the all-time best Brazilian list dominated by Almeida, whose textile best stands at  1:55.22 and national record set in a shiny suit at 1:53.92.

The sole Olympic qualifier among worn on the last day of the meet was 37-year-old Fabiola Molina, on 1:00.74 ahead of Laure Manaudou (FRA), on 1:01.02, in the 100m backstroke. Joanna Maranhao won the 200m butterfly in 2:13.20.

The rest from full-on training that comes naturally with several days of competition has seen Mireia Belmonte (ESP) improve a touch throughout the week and today she was in shape for a 4:05.70 championship record of 4:05.70 in the 400m freestyle way out ahead of Denmark's Lotte Friis, on 4:09.68, the best of Brazil Cecilia Biagioli, on 4:12.53.

The last solo final of the session had US visitor Charlie Houchin on 3:50.11 at the helm of the 400m free field, Juan Pereyra on 3:51.45, Marcos de Oliveira third in 3:53.97.

The meet is done and it ended with Flamengo, head by coach Marco Veiga, taking its first Maria Lenk Trophy in 10 years, its 2152.5 points keeping at bay  Pinheiros, 2,070 and Minas, 1,939.5.