The swimming pool was unveiled today by Carlos Nuzman (left) along with Education Minister Aloizio Mercadante and UIPM President Klaus Schormann ©Rio 2016/Alex Ferro

Rio 2016 President Carlos Nuzman and leading Brazilian Governmental officials were on hand to open the Deodoro Aquatic Centre today to mark the beginning of the modern pentathlon test event.

Nuzman joined Sports Minister George Hilton and Education Minister Aloizio Mercadante, as well as International Modern Pentathlon Union (UIPM) President Klaus Schormann for the ceremony.

"We celebrate the legacy of Baron Pierre de Coubertin with our sport and we have to thank to Rio 2016 Organising Committee for all the efforts they have achieved," said Schormann.

"Deodoro will be a great place to visit during the Olympic Games."

The event is doubling as the season's second UIPM World Cup competition.

Proceedings began with women's qualification today, with Olympic places on the line as well as World Cup points.

Brazil's Yane Marques was among those competing on home soil in the test event  ©UIPM
Brazil's Yane Marques was among those competing on home soil in the test event ©UIPM

France's Élodie Clouvel led the field of 36 qualifiers into the final.

Lithuania's Laura Asadauskaite and Italy's Claudia Cesarini were second and third.

London 2012 bronze medallist and two-time Pan American Games champion Yane Marques led the home charge by progressing, albeit non-automatically in 28th place.

The women's final and men's qualification will take place tomorrow.

Both the men's and the mixed relay finals will then be held over the weekend.