This weeks athletes taking part in the bizzare challenges were from; Japan, Great Britain, USA and France. Challenges they took part in were: Back sprint: Athletes start in the official reverse set position. They run backwards to the finish. Although the Japanese athlete, Kanji did not beat the World Record time of 37.58 seconds, he did show some brilliant sprinting skills and his time came in at 41.03 secs. He best time ever. Speed gun Run: Athletes must achieve maximum speed before the end of the 20 second track. Their speed is measured the instant they hit the crash mat. The Japanese athlete won the second round, with a speed of 18.91 mph. The World Record is 20.05 mph Association Bobbage: The athletes jump in the pool from increasing heights. Their head must not go underwater. Wantabe got a red and white flag for his attempt, and unfortunately for him the one was enough to disqualify him. Stuart Crispin (GBR) won the challenge, and was 10m from breaking the World