Top of Utah ?????

10 mile run/walk, nice gloomy, cool morning.  If I can follow this plan for my long runs:

Aug. 8 12 miles

Aug. 15 14 miles

Aug. 22 16 miles

Aug. 29 18 miles

Sept. 4 20 plus miles

....then I think I can go into Top of Utah knowing I can finish, not really well trained, but it would be doable.