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RIO DE JANEIRO, BRAZIL - AUGUST 12: Nadine Broersen of the Netherlands and Barbara Nwaba of the United States compete in Women's Heptathlon 100 Meter Hurdles on Day 7 of the Rio 2016 Olympic Games at the Olympic Stadium on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Jamie Squire/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 12:  Nadine Broersen of the Netherlands and Barbara Nwaba of the United States compete in Women's Heptathlon 100 Meter Hurdles on Day 7 of the Rio 2016 Olympic Games at the Olympic Stadium on August 12, 2016 in Rio de Janeiro, Brazil.  (Photo by Jamie Squire/Getty Images)