I struck out on getting tickets through the sumo official website and through buysumotickets.com. The tickets through Klook might have been overpriced, but we’re guaranteed and came with a tour guide that explained the history of sumo, showed us around the arena and provided us with commentary during the sumo matches through an earpiece (optional for you to listen to during the event). So a big shout out to our tour guide Maki as she was awesome!