Your Eight-Week Plan for a Century
This article by Chad Butts of enduranceWERX was written for the Program of the 2010 TD Bank Five Boro Bike Tour. It assumes that you're starting with the ability to ride 42 miles, the distance of the Five Boro. (To get to that point, see Preparing for the Five Boro.)
http://www.bikenewyork.org/resources...s/century.html