Friday Runday! Workout

1x 400m moderate
Rest 1 min
2 x 300m fast- walk 100m between
Rest 3 mins
1 x 400m moderate
Rest 1 min
3 x 200m faster - walk 100m between each
Rest 3 mins
1 x 400m moderate
Rest 1 min
4 x 100m fastest - walk 100m between each