Self doubt at the end of my taper

Today's run (street): 2.5 miles

If this morning's run was a typical training workout, I would have been pleased by my performance. I pushed my speed somewhat, ran well and ended up pacing 20 seconds per mile faster than normal. So why complain about that? While I concede some performance due to the time of day (4 AM), I was hoping to finish this morning's route a full minute faster than I did.

I was speaking to my friend CK yesterday and mentioned the 8K on Sunday. I told him my goal target for time and pace and he said I should do that easily. Easy for him to say, he can run 7:00 miles any day of the week. When I was running this morning, I felt like I could push it another 10%, but after that it would be a challenge. When I returned to my house at the end of my run, I questioned whether I could even sustain the pace I'd run today over double the distance.

Last year I averaged 8:40 per mile for the ~ 5 mile NHP course. It was both a PR and a great surprise, since I'd paced 9:00 the prior two years. I've run well in races this year and did some speed work over the weekend, but I haven't done a run greater than 5 miles since May 19. I'm hoping the energy of race day, plus two days rest, decent weather and a performance mindset, will help me reach my goals on Sunday.