About non-official ticket purchasing sites
The sites listed below are not official sites to purchase Sumo tickets. Due to the exclusivity of rights by the Japanese Sumo Association, it is prohibited to re-sell tickets.
Please be aware that our organization is not responsible if you are denied the entrance to the arena or any other trouble that might occur.
・ ticket ryûtsû center
・ Others, Yahoo auctions, internet purchase via mercari
The official Sumo ticket purchase site is here