Ok, so here's a thing... I use the iPhone C25K app on an iPhone 5S.
On my last run (W5R2) I couldn't help but think that time was moving rather slowly, and I felt like I had been running for ages yet I still seemed to have lots of time left to run. I put it down to me being so knackered that I wasn't thinking straight, but as I hadn't used my Nike run app on that particular run I couldn't check.
Tonight came the dreaded W5R3 and I decided to set my Nike running app for a 20 minute run. I started the run on the Nike app at the exact same time as the run on the c25K app started. I was merrily running (I used the term 'running' advisedly and in the loosest sense) when the Nike app tells me I have run 10 minutes. "Great!" I thought, so I checked my C25K app and that showed I had only run for just over 4 minutes!! My watch agreed with Nike.
When the Nike app told me I had completed my twenty minutes, Laura was still showing that I had 7:45 left to run!! I was furious!! In the end I just kept on running as, even though Laura had been cheating on me, I felt like I would be cheating on her if I didn't go on to the end. To cut a long story short I just ran for 27:45 on W5R3 and I love Laura!!!!! Oh yeah!!!