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RIO DE JANEIRO, BRAZIL - FEBRUARY 28: Sunrise at Pontal beach before the Caixa Brasil Race Walk Cup - Aquece Rio Test Event for the Rio 2016 Olympics on February 28, 2016 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/Getty Images)

RIO DE JANEIRO, BRAZIL - FEBRUARY 28:  Sunrise at Pontal beach before the Caixa Brasil Race Walk Cup - Aquece Rio Test Event for the Rio 2016 Olympics on February 28, 2016 in Rio de Janeiro, Brazil.  (Photo by Buda Mendes/Getty Images)