Inside Tokyo's Ryogoku Kokugikan Sumo Stadium. The entire event lasts the best part of a day, starting with junior wrestlers and ending with the top athletes in the sport. You don't have to stay all day though, and indeed many only come for the last hour or so. The front row seats are very exclusive, but you'll be sat cross-legged for hours and risk a Sumo hurtling your way! I reckon we had a better deal further back in the Stadium.