I'm sorry, I don't think I'm reading in to the fact that RD would need to consider the weeks runners would need for training for the next race they announce. As a runner, former coach and race organizer, date announcements are always considered with athletes training schedules. The same is true when races have to be cancelled or delayed, athletes training schedules are always considered. Also the RD training programs is from Jeff Galloway, coach and former Olympian, what does it matter if they've been up for a while it's a weekly program to follow to build up mileage.