Seriously mate? wrote:
Not sure if this applies to your colleagues but I live in Western NY and this winter have trained almost exclusively in temperatures below 50 degrees (with most of those days below 40 degrees). If I had to run anything longer than a half marathon today (around 70 degrees) I would totally detonate. I'm in probably my best shape since I've been running but the heat really gets to me if I'm not used to it.
This is well stated, and precisely why I doubt I will ever run a spring marathon. Acclimating to the heat in one day (and in one race) is not a recipe for success.