Dave Zabriskie, the ride of his life, puts US 1 and 2 on opening day. The 26-year-old from Salt Lake City completed his ride in a blistering 20:51. That's an average speed of 54.676 kph, the fastest individual time trial in Tour history other than the 55.152 kph recorded in a 7.2km prologue by Chris Boardman in 1994. Folks, that's averaging around 34.2mph.