I'm training for London this year and getting really excited about it. Training is going well and my confidence is high, I'm just a little intrigued as to what target to set.
Ordinarily I'd have no problem judging my fitness from tempo runs and distance efforts to work out what pace I feel comfortable aiming for - but on this occasion I'm aware that my entire training cycle is taking place through the Australian summer. I'm doing my long runs (28km [18 mile] at the moment - but will build up to 37km [23 mile]) in temperatures and humidity that would have most of you in the UK flat on your back gasping for air (No criticism whatsoever of you guys - just a reflection of what conditions you're used to). I'm running in 28-30C with 50-70% humidity most of the time. Its oppressive, its hard and I am developing a very very effective sweat system!
I've read plenty that says if you're racing in hot conditions you need to make allowances and reduce you speed (by 15-20% perhaps for these conditions) - but how does that work in reverse? Can I simply race 15% faster than I calculate I'm used to? Or is there a downside to conditions being cooler and dryer than I'm used to? Am I 'in tune with running slowly in hot sticky conditions and not used to the faster leg turnover that higher speeds mean? I'll only have 6 days to acclimatize to London in April and although Brisbane weather will have cooled a little by then, there's still likely to be a significant differential between climates.
Its a bit of a stretch asking a UK forum for advice on this one - but if there's anyone who has any experience of 'training hot' and 'racing cool' I'd really appreciate hearing your thoughts.