anyone done this? I usually do a 5k trial on Saturdays that I really enjoy and I've got a 10K on Sunday coming. Do you think I can do both without running a painful 10k on the Sunday? I usually do my long run on the Sunday following my faster 5K on the Saturday but the long run is easy and slower in pace anyway, so I can manage that reasonably well. I was thinking of doing the 5k nice and easy and also to keep my overall weekly mileage up for my half marathon next month. What do you think?