Hey,
I was looking for some information and some tips. I have been training pretty hard since Feb. I have done 2 10K's, 2 5k's and 1 Sprint Tri Race. I live in Richmond, Va where it is very hot and humid in the summer. I have notice over the last 3 weeks or so its been getting harder and harder to train and that my endurance seems to be suffering. Could you please provide some advice.