RIO DE JANEIRO, BRAZIL - AUGUST 12: Diana Sujew of Germany competes in the Women's 1500m Round 1 - Heat 3 on Day 7 of the Rio 2016 Olympic Games at the Olympic Stadium on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Shaun Botterill/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 12: Genzebe Dibaba of Ethiopia competes in the Women's 1500m Round 1 - Heat 1 on Day 7 of the Rio 2016 Olympic Games at the Olympic Stadium on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Matthias Hangst/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 12: Konstanze Klosterhalfen of Germany leads the field during the Women's 1500m Round 1 - Heat 1 on Day 7 of the Rio 2016 Olympic Games at the Olympic Stadium on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Matthias Hangst/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 12: Genzebe Dibaba (2ndR) of Ethiopia competes in the Women's 1500m Round 1 - Heat 1 on Day 7 of the Rio 2016 Olympic Games at the Olympic Stadium on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Cameron Spencer/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 12: Linden Hall of Australia Nancy Chepkwemoi of Kenya and Amela Terzic of Serbia compete in round one of the Women's 1500 metres 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)
