Good treadmill workout

This morning I warmed up with 5 minutes on the elliptical, then ran a 5K (3.1 mi) in 38 minutes on the treadmill! Was excited about the time, though it was indoors (at the gym) and with just a little incline (.5% for part of the run). I was a bit tired when I finished, but felt fairly strong. I'm coming to enjoy the treadmill, especially since I can control the speed and increase/decrease as I want/need. I need to remember to incorporate the incline function as well, to mimic racing more realistically.