The cyclists traveled 46.9 kilometres from Fort Saskatchewan to Camrose.
Sagan has now won six of the last nine races he has entered and 21 for the season. He currently has a 23 second lead at the moment over Rohan Dennis of Australia after posting a first stage time of 3:22.17. His overall time is 3:30.35.
Sagan, who is 23 years of age, currently rides for Cannondale Professional Racing. In the last two years, he has won four individual stages of the Tour de France. He has already won competitions in 2013 in Gent-Wevelgem, Belgium, Walloon Brabant, Belgium, and Camaiore, Italy.
The second stage (day three) of the race will be on Thursday. It will start in Devon (26 kilometres southwest of Edmonton) and finish in Red Deer.