Nathan Adrian of the United States competes in the Men's 100m Freestyle Final on Day 5 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 10, 2016 in Rio de Janeiro, Brazil.

Nathan Adrian of the United States competes in the Men's 100m Freestyle Final on Day 5 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 10, 2016 in Rio de Janeiro, Brazil.

(L-R) Silver medalist Pieter Timmers of Belgium, Gold medalist Kyle Chalmers of Australia and Bronze medalist Nathan Adrian of the United States pose on the podium during the medal ceremony for the Men's 100m Freestyle Final on Day 5 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 10, 2016 in Rio de Janeiro, Brazil.

(L-R) Cameron McEvoy of Australia, Nathan Adrian of the United States and Kyle Chalmers of Australia compete in the Men's 100m Freestyle Final on Day 5 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 10, 2016 in Rio de Janeiro, Brazil.

Nanjing 2014 - Gold medalist Shen Duo(C) of China,silver medalist Siobhan Bernadette Haughey(L) of Hong Kong, China and bronze medalist Qiu Yuhan of China pose on the podium during the awarding ceremony for the women's 100m Freestyle final of swimming event of Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, on Aug. 19, 2014.

Refugee swimmer Rami Anis during the men's swimming 100m freestyle at the Rio 2016 Olympic Games at the Olympic Aquatics Stadium, on 9th August, 2016.

Refugee swimmer Rami Anis during the men's swimming 100m freestyle at the Rio 2016 Olympic Games at the Olympic Aquatics Stadium, on 9th August, 2016.

Refugee swimmer Rami Anis during the men's swimming 100m freestyle at the Rio 2016 Olympic Games at the Olympic Aquatics Stadium, on 9th August, 2016.

Nanjing 2014 - Gold medalist Matheus Paulo de Santana of Brazil(C) and silver medalist Yu Hexin(R)of China and Bronze medalist Damian Wierling of Germany during the awarding ceremony after the Men's 100m Freestyle match at Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, on Aug. 22, 2014.

Nanjing 2014 - Gold medalist Team China , silver medalist Team Brazil, bronze medalist Team Australian pose on the podium during the awarding ceremony of Mixed 4 x 100m Freestyle Relay of Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, on Aug. 17, 2014.