I did the Credit Suisse and back run on Saturday. I had had a very sweet crepe for lunch earlier, so I was full of sugar. But I crashed from the sugar high and felt a bit low on energy on the way home. I forgot my watch and estimated the time.

I chose the Westminster run on Sunday, so it would be my longest run for a few months. Last week, I noticed that my legs were ok but I needed to be more hydrated. I haven't noticed any drinking fountains on my long running routes. I took some change with me so I could buy a drink during the second half of the run. I got a two-liter bottle of water for 47p from the M&S near Southwark. It was obvious that this was way too much water! Another runner was coming past, so I offered him some of the water which he accepted. I had a few big gulps myself and there was still almost all the water left.

It's a hassle to carry 1.8 liters of water with you while running. The long shape of the bottle is awkward. I swapped it from hand to hand as it got uncomfortable. Nearer home, in a park, I took another big drink then poured the rest of it over my head.

The last half hour of the run was the best I have experienced in a long run for a while. It was a good step on my training. I iced my legs extensively when I got home.