Well I did it! 24K in the lovely Loire countryside. I started at 7 but should have started earlier because by 10.15 when I struggled up the last hill the temperature was well into the seventies (old money). It was really hard work and I couldn't match the race pace the MyAsics plan had set for me over the second hilly and hot part of the course. I ended up being 15 seconds per k slower than I should have been. I learned a lot though. 1. Never underestimate the amount of water you will need. 2. Don't think because you have 'been' that you won't need an emergency toilet stop involving stumbling through flesh-tearing forest brambles to find privacy (Imodium for me on the next long run) 3. Don't think because you have never had chafing issues before that you're immune . That's all I'm saying ...
Alls well that ends well and at least my toe held up π