At last week’s International Diamond Trophy races, sub-zero temperatures had turned the Mount Van Hoevenberg course so hard and slick that the sleds’ runners would not bite into the ice ...

Behind every international sporting competition is an army of local volunteers working behind the scenes to make it happen.

The sled has no brakes. Bobsled: Racers start running along the ice track while pushing the sled. Eventually, the crew leaps in and heads down the track. The front racer controls the steering ...