I have been running approx. 4 miles 3 times a week for several months. Just under 4 miles is a good distance for me as I generally only seem to have a half hour slot to run in.
I would like to build this distance up for a longer run on the weekend but I am not sure how to pace myself as after my 4 miles I am pretty pooped, especially in the current heat (my pace is 8.4 min/mi). I would really like to hear from those who run longer distances how you build up to it with a comfortable pace.
Thanks!