It’s time for ski racing. For those of us with unreal VO2 capacities, unbelievable webs of fast- and slow-twitch muscles, fantastical abilities to handle lactic acid, superhuman willpower, and/or the finest pharmaceuticals in the world, there’s the 2009-2010 World Cup, including once again the Tour de Ski (January 1-10, 2010) but punctuated by the Winter Olympic Games (February 12-28) in our