10k pace

I ran 3 miles yesterday at my "10k pace" (about 8:30/mile). It's a lot easier to go that fast when I'm actually running a 10k as opposed to running on a tredmill. Never the less it felt good to run a little faster than I normally do. I feel like I should push myself to go faster on the shorter runs more often so that when I slow down for the longer distances I'm not moving at a completely glacial pace.