I've registered for the Great North Run on 15th September (a Sunday). I do a parkrun most Saturdays but my question is should I do the one the day before the HM or should I be resting. I know that it's usually recommended to ease off the running during the week leading up to the big day but my training plan stops on the Sunday before and I can't believe that's right. So - would a parkrun be a good warm up or should I be saving myself for the main event?! Any advice on appropriate training for that final week would be most welcome.