The New Dominion Winter Olympics is "the premiere sporting event in terran space," or at least since the rise of the Terran Dominion.
At least one of the Olympics was held on the ice world of Zenn with disastrous results. The Korhal Heat Blisters defeated the Braxis Glaciers in a stunning upset, sparking a never-ending riot.
1999-05-12, Ice Age. StarCraft Compendium Map Archives. Accessed on 2007-11-08