A huge day 8 that wrapped up the business in the pool, with the Americans taking gold in both relay races and Michael Phelps winning his 18th and final Olympic gold medal, while in the Athletics stadium Great Britain dominated, just like in Cycling and Rowing, with golds in Men’s long jump, Women’s heptathlon and Men’s 10,000 meters, whiel Shelly-Ann Fraser-Pryce of Jamiaca retained her Olympic title in the Women’s 100 meters.