Thanks everyone, I did make sure I kept hydrated during the day and took plenty of water with me so I could sip during the race if I needed to and easily re-hydrate afterwards. I probably set off a bit too quickly really (competetive instinct kicking off when the gun goes probably!) but I managed to maintain a good pace and despite the heat achieved both my original targets for the race - a sub-45 finish time and a new PB!! Feeling rather pleased with myself now but think my legs might be a bit sore tomorrow!
So tonight I have a 10k race, part of a club summer league series, on a flat course which should have good PB potential. Except it's a sticky 26C or so outside with barely a breath of wind and not likely to cool down much in the next 3.5 hours before the race gets underway!
I do almost all my training first thing in the morning so I never normally have to worry too much about heat. I already find evening races more difficult than morning ones, and I'm now debating how to tackle tonight's race in this heat. Is it best to just take it steady and see what happens, or should I just go all out for race pace and give that elusive PB a go anyway!?
Any tips on coping running in hot weather would be very welcome