I surprised myself earlier this week by completing week 5 day 3 - the 20 minute run - without too much difficulty. However, two runs later - week 6 day 2 consisting of two 10 minute runs separated by 3 minutes of walking? I found that much more difficult. Why?????
Now I'm all worried about the next run, which is 22 minutes straight. :). In the meantime I signed up for a 5K in mid July at a local airport. You can't get much flatter than an airport runway!!!
Are you all from the UK? I live in the US, in New Jersey.