Awesome Track Workout (Intervals)

Warm Up:
1 mile easy
800 strides
Main Set:
400
rest 1:00
800
rest 1:20
1200
rest 1:30
1600
rest 2:00
800
rest 1:00
400
run the short ones faster than the long ones (duh)
Cool Down:
400 easy (or more)
Total: 5 miles