Running (Fartlek) Workout

PM
Running
Some Running on Grass + Dynamic Stretching (Warm-up)
8x20m Sprinting Drills on Grass (high kneesx2, straight-leg boundsx2, B-skipx2, jumping skipsx2)
15x50m Sprint on Small Hill + 50m Jog + 10m Walk (on Grass)
Some Walking and Leg Swings + Static Stretching (Cooldown)