Table 1. Estimation of Kinetic Energy for 6 different potential collisions related to the three different start position adopted by two players facing each other. Players 1 start Players 2 start Collision energy (in J) % increase 2-point 2-point 79.3 0 % (ref value) 2-point 3 Points 92.6 17% 2-point 4 Points 95.7 21% 3 Points 3 Points 106.9 35% 3 Points 4 Points 110.3 39% 4 Points 4 Points 113.7 43% ref value: reference value