Francesco Friedrich, Candy Bauer, Martin Grothkopp and Thorsten Margis (gold) of Germany compete during the 4-man Bobsleigh on day 16 of the PyeongChang 2018 Winter Olympic Games at the Olympic Sliding Centre on February 21, 2018 in Pyeongchang-gun, Republic of Korea.

Yunjong Won, Junglin Jun, Seo Youngwoo and Donghyun Kim (silver) of Republic of Korea compete during the 4-man Bobsleigh on day 16 of the PyeongChang 2018 Winter Olympic Games at the Olympic Sliding Centre on February 21, 2018 in Pyeongchang-gun, Republic of Korea.

Yunjong Won, Junglin Jun, Seo Youngwoo and Donghyun Kim (silver) of Republic of Korea compete during the 4-man Bobsleigh on day 16 of the PyeongChang 2018 Winter Olympic Games at the Olympic Sliding Centre on February 21, 2018 in Pyeongchang-gun, Republic of Korea.

Nico Walther, Kevin Kuske, Alexander Roediger and Eric Franke (silver) of Germany compete during the 4-man Bobsleigh on day 16 of the PyeongChang 2018 Winter Olympic Games at the Olympic Sliding Centre on February 21, 2018 in Pyeongchang-gun, Republic of Korea.

Francesco Friedrich, Candy Bauer, Martin Grothkopp and Thorsten Margis (gold) of Germany compete during the 4-man Bobsleigh on day 16 of the PyeongChang 2018 Winter Olympic Games at the Olympic Sliding Centre on February 21, 2018 in Pyeongchang-gun, Republic of Korea.

Francesco Friedrich, Candy Bauer, Martin Grothkopp and Thorsten Margis (gold) of Germany compete during the 4-man Bobsleigh on day 16 of the PyeongChang 2018 Winter Olympic Games at the Olympic Sliding Centre on February 21, 2018 in Pyeongchang-gun, Republic of Korea.

Feb 1968: Winter Olympics, Grenoble. A floodlit view of the Bobsleigh run at Chamrousse. Mandatory Credit: Allsport Hulton/Archive

5th February 1948: Britain's John Crammond is off to a flying start in the Skeleton Bobsleigh event on the Cresta Run, during the Winter Olympics at St Moritz. He came in third to win the Bronze medal. (Photo by Chris Ware/Keystone/Getty Images)

Roald Bradstock taking a selfie with Sophie Vercruyssen and An Vannieuwenhuyse (Bobsleigh) from Belgium.