I registered at 11:00! It was sold out later in the day! This will be my third year to ride. You should team up with someone if possible if you were lucky enough to register. For the other two MS rides in the state (SA to CC and Dallas to Ft. Worth) , you can register the day before because they don't get close to maxing out. So if you didn't get in this one, check out the Dallas one (the SA ride was done a couple of weeks ago).