Initially I did not have a set date for a race and I put December 4th as the last date to finish the plan.
At some point, wrongly, I set the date for December 31st, the date on which there is actually a race, but then I realized that that date is
incompatible with my commitments and with the 21k program that I would like to do for an half marathon in early March next year.
Putting December 31st as a date, I would not have the minimum time of 12 weeks (Greg Plan) left to prepare the other half marathon plan.
In short, the trivial question is this: is there a way to bring the 10k plan end date back to the original date of December 4th?
The first suggested date is now December 26th but it is not compatible: the 21k plan start date should be December 5th
