Jared Tallent of Australia (C) competes in the Men's 50km Race Walk on Day 14 of the Rio 2016 Olympic Games at Pontal on August 19, 2016 in Rio de Janeiro, Brazil.

Bronze medalist Hirooki Arai of Japan reacts as he finishes the Men's 50km Race Walk on Day 14 of the Rio 2016 Olympic Games at Pontal on August 19, 2016 in Rio de Janeiro, Brazil.

(L-R) Matej Toth of Slovakia, Rafal Augustyn of Poland, Jared Tallent of Australia, Takayuki Tanii of Japan and Zhendong Wang of the People's Republic of China start the Men's 50km Race Walk on Day 14 of the Rio 2016 Olympic Games at Pontal on August 19, 2016 in Rio de Janeiro, Brazil.

Matej Toth of Slovakia (C) competes in the Men's 50km Race Walk on Day 14 of the Rio 2016 Olympic Games at Pontal on August 19, 2016 in Rio de Janeiro, Brazil.

ATHENS - AUGUST 27: Gold medalist Robert Korzeniowski of Poland celebrates on the podium during the medal ceremony of the men's 50 kilometre race walk event on August 27, 2004 during the Athens 2004 Summer Olympic Games at the Olympic Stadium in the Sports Complex in Athens, Greece. Denis Nizhegorodov of Russia came second and Aleksey Voyevodin of Russia came third. (Photo by Donald Miralle/Getty Images) *** Local Caption *** Robert Korzeniowsk