Track Workout - Shorter, Faster Intervals

Objective: Train up your lactate threshold. Start the main set running the 400s at your 5K pace. Each time the distance decreases, you increase your speed and you get a longer rest relative to the work interval.

Warm Up	Perform a standard warm-up.
Main Set	4 x 400 at 5K pace with 1:30 rest 4 x 200 at 400 sprint pace with 2:00 rest 4 x 100 at near all-out sprint with 2:00 rest (2800 total)
Cool Down	15 minutes - walk 400, stretch for remainder of 15 minutes