Players form a circle with a 20m radius, use approximately 1 ball per 6 players. Same amount of players as there are balls start in the middle, all balls start on the outside of the circle
(A) handballs to (B) then sprints to replace (B)'s position in the centre
(B) handballs to (C) then sprints out of the centre towards (C)
(C) handballs to (A) who has replaced (B) in the centre, then sprints after their handball into the centre.
(A) handballs to (D) then sprints out again
This process occurs with all balls around the circle