Privacy notice
Last updated 11 November 2026
What we collect
When you join the SUPERSUMO list we keep:
- Your email address and the option you picked (fan, athlete, sponsor, media or partner).
- The date you signed up and gave consent, and your Founding Member number.
- The approximate country, region and city your connection came from. We do not store your IP address.
- If you arrived through a friend's share link, that friend's member number.
If you choose to answer the optional questions after signing up, we also keep your answers: how you want to watch, where you are, who you would come with, what interests you, and your first name. Every one of these is optional, and skipping them changes nothing about your place on the list.
We do not use cookies or advertising pixels on this site. To understand how the site is used, we count visits anonymously: which pages are viewed, roughly where visits come from (country, the website that linked here, and campaign tags in the link), the type of device, and whether someone signed up. Each visit is counted with an anonymous code that changes every day, so it cannot be used to follow anyone across days, and no IP address is stored. These counts are kept with Cloudflare and deleted after about 13 months.
Messages you send us
If you write to us through the form on our home page, we keep your message, the email address you give, your name if you add it, the date, and the approximate country, region and city your connection came from. We use these only to read and answer your message. Sending a message does not put you on the SUPERSUMO list unless you tick the box asking for news. You can also email [email protected].
What we use it for
- Sending SUPERSUMO news, event announcements and ticket access.
- Planning events, ticketing and streaming around what people tell us they want.
- Understanding, in aggregate, where interest comes from.
We do not sell or rent your information. We rely on your consent, which you can withdraw at any time.
Who can join
The list is for people aged 16 and over.
How long we keep it
We keep your details until you unsubscribe or ask us to delete them, and review the list at least once a year. Messages are kept for up to two years after our last reply, unless you ask us to delete them sooner.
Where it is kept
Sign-ups and messages are stored with our hosting provider, Cloudflare. Sign-ups are shared with our newsletter service, beehiiv, which sends our emails. Neither may use your details for their own marketing.
Your choices
Every email we send includes an unsubscribe link. To see, correct or delete what we hold about you, send a request below. We reply to the email address you give, usually within 30 days.
Who we are
SUPERSUMO is operated by X-Isle Hawaii LLC. SUPERSUMO has no connection to the Japan Sumo Association or the International Sumo Federation.