800m

Warm-up: A few squats, a little bit of stretching...

Workout: 4 x 800m, with 3 minutes of rest in between each one.

I did this on a treadmill (not that I wanted to! I went to the track - in the rain! - and it was locked. Boo!), so all of the 800s took exactly 3:06. They all felt pretty good - my legs didn't feel like Jell-O afterwards, and I only got really short of breath on the last one.