Athletes compete during the Women's 30 km Mass Start Free

Athletes compete during the Women's 30 km Mass Start Free

Athletes compete during the Women's 30 km Mass Start Free

(L-R) Therese Johaug of Norway, Marit Bjoergen of Norway and Kristin Stoermer Steira of Norway compete during the Women's 30 km Mass Start Free

Silver medalist Therese Johaug of Norway, gold medalist Marit Bjoergen of Norway and bronze medalist Kristin Stoermer Steira of Norway celebrate during the flower ceremony for the Women's 30 km Mass Start Free

Silver medalist Therese Johaug of Norway, gold medalist Marit Bjoergen of Norway and bronze medalist Kristin Stoermer Steira of Norway celebrate during the flower ceremony for the Women's 30 km Mass Start Free

Kristin Armstrong of the United States prepares to start in the Women's Individual Time Trial on Day 5 of the Rio 2016 Olympic Games at Pontal on August 10, 2016 in Rio de Janeiro, Brazil.

Celia Aymonier (L) of France and Stina Nilsson of Sweden compete in the Women's Team Sprint Classic Semifinals

(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.

Marcus Hellner (L) of Sweden (Silver medallist) leads the pack in the Men's Skiathlon 15 km Classic + 15 km Free during day two of the Sochi 2014 Winter Olympics