Running (Fartlek) Workout

PM
Running
Some Running, Skipping and Walking on Grass + Dynamic Stretching (Warm-up)
8x20m Sprinting Drills on Grass (high kneesx2, straight-leg boundsx2, B-skipx2, running B-skipx2)
1x50m Strides on Small Hill (Grass)
15x50m Sprint on Small Hill + 60m Jog (on Grass)
1x50m Strides on Small Hill (Grass)
Some Walking, Running, Skipping and Leg Swings + Static Stretching (Cooldown)