I have been keeping a secret the past 9 weeks....
For my 13 miler (week 4), and my second 13 miler w/ the last 3 miles at HMP (week 6), and my 16 miler w/ the last 4 miles at HMP (week 9) I have not been fueling during the run.
After my stomach revolted against the GU during my half in September I was apprehensive about using them again.
When I started running in the morning back in the summer of 2007, my stomach was super sensitive. Not only did I have to be careful what I ate before a run but also afterward. I had to stay away from dairy after all my runs because I became lactose intolerant for about 3 hours after I finished running.
My stomach has slowly become less sensitive as I have run more and more, but I still have an occasional problem. So for the training of my 3rd half marathon, I decided to try and not use any fuel while running and see how it worked out.
I have this giant box of GU at home and have not used one yet!
Just to be safe, during all my extra long runs I have stashed one GU in my pocket but I haven't used it. I just haven't felt like I needed to. This is all very confusing because last summer while training for my second half, I used GUs all the time.
One difference could be the weather. All my training runs have been during 30-40F weather while in the summer, most of my runs were in the 80F weather and it was hot and I needed to refuel.
Another difference could be the fact that I am running my long runs at a slower, more comfortable pace for this training cycle.
I am not really sure what the difference is but I do know for the half marathon coming up on May 1st, I will most likely carry a GU with me during the race but I don't know if I will need it or use it.
Have you noticed a difference in your fueling based on the season or weather?
Have you ever run more than 10 miles without taking any fuel?