On day 175 I ran a marathon for the first time. Tomorrow I’ll write a geekily detailed account, but for now I’ll say that’s the hardest thing I’ve ever done. Cramp at mile 17 meant I finished nowhere near my hoped for time but I couldn’t give a hoot. London, you were outstanding. Undeterred by Boston, people came out in their hundreds and thousands and bathed runners in love. For now, shower, dinner, bed!