Hello,
Checking the Sumo Association website, for official tournaments, tickets must be purchased in advance.
Unfortunately, you can only reserve the wheelchair seating by phone. So, perhaps the best option is to ask your hotel or tour company to call.
They list some points to keep in mind when reserving the tickets:
- If your wheelchair is wider than 65cm, please tell them at the time of booking
- Only individuals can book the tickets (not large groups)
- The names of the wheelchair user and their helpers must be stated (and will be checked)
- The seating is reserved for those in wheelchairs and their helpers, not other attendees (which is nice, you don’t need to worry about an able bodied person booking them)
The phone number is 0570-02-9310
This is just for tournaments. As Maria and Kamil mentioned, if you are lucky you can go to non-tournaments for free.
Hope this helps someone!