If you are shooting for sub 2 hour like your signature says then from what I see in your log you're running too fast, especially considering that you are increasing mileage. That's my guess. I ran just under 1:40 for a half earlier this year and your easy runs are faster than mine.

I am doing my long runs at about 6:00 per kilometer, at least in this hotter weather, and am also aiming for a slightly faster time, though not as fast as Mr.PH! I have found I feel more beat up, including little aches and pains, on faster runs, so it might not be the shoes but the pace you are running. (Almost ended a sentence with a preposition..) Another factor is that your actual running motion may be changing slightly as you do more miles, so the shoes that originally suited you may not now. I am doing my race October 19th., starting to get nervous, my training seems to indicate the time goal I initially set at the beginning of the year is too ambitious, so I have backed off 3 minutes. I am sure you can break 2 hours, though, keep up the good work! Simon.

Thanks all. It's soooo hard to slow down. It's just not comfortable to go slower than a 9:0 to 9:15 pace or so. At nthat pace, I'm not breathing that heavy - i could carry on a conversation. My tempos are usually ~ 8:30 or less. My 7.5 mile race pace was 7:47. BUT, I did get a new pair of Mizuno Wave Inspires and they feel much better. I was overpronating a little. Needed a bit more stability than pure neutrals. Two short runs so far and no issues. This week, I'll go all easy and lead up to a long run on the weekend. Paul, I'm in lovely Woburn, MA.

Oh, yes...good ol' Woburn Good luck in your training!!! You'll do great at your half!!