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.
I do think this has a lot to do with it. Not crazy warm weather but this past weekend locally was literally the first long run I'd done over 55 degrees (and they clearly would have been tapering at this point). But the 68 degree weather I ran in felt hot as h*ll because I wasn't used to it.
Making a mental note to heat acclimate next year as I prepare by running in LS or more.