How long do I have to buy tickets for the Ryogoku Kokugikan Sumo Tournament in Tokyo?
Sumo contests are held three times a year at the Ryogoku Kokugikan, with each tournament lasting for 15 days. The periods it takes place are in January, May, and September. Tickets can be reserved 1 month before the start of the tournament. The first and last days of the tournament, as well as the weekends in the middle, are mostly very popular and crowded. It is relatively easier to buy tickets for the weekdays.