Wish I'd found this page before I started the C210K. I didn't know there was a C25k till about week 4. It's been pretty similar so far but next week is different. I did 30 minutes today after a week off due to the festivities and it was a long hard slog. I nearly gave up several times but managed to complete it. It's been so hard lately I'm thinking of doing 3 30 minute runs next week before continuing the c210k. Does that mean I can graduate the c25k? Has anyone else done C210K? I'm not even sure I want to do 10k but it was the first app I downloaded! I have to complete the stupid app now though I've started it.