5-5-12 Sprint Intervals Workout

Sprint Intervals

15x100m (run 100m, walk 100m between reps) - 18.81, 16.93, 16.30, 15.95, 15.53, 15.09, 14.53, 14.56, 14,57, 14.69, 14.53, 14.50, 14.69, 14.53, 14.69

Much harder than it may seem. Trying to maintain that intensity with little rest!!!!