Yesterday I completed w9r2. I am managing to run for 30 minutes but just not very far. I've only managed 4.2k. I thought that I'd be closer to 5k by now. The problem is that I've signed up for a 5k run in 2 weeks time as I thought it would be achievable. And I've got over £1,000 in sponsorship, so can't drop out now! How do I improve my distance in such a short time?