Tiff, how do you measure your calories burned? Do you have a heart rate monitor that does it? I'm really tempted to buy one of those.
Today I ran 3.1 miles (5k) on the treadmill, and I shaved a minute off the time it took me to do it last week -- this week I did it in 35:30. Not exactly lightning speed, but fast for me!
Tomorrow is rest day, and my legs need it...