Competition & event platform

Run your event like a major promotion

Registration, divisions, payments and day-of check-in for competitions, gradings, seminars and camps — set up in an afternoon, free to publish.

The old way: forms, transfers and a clipboard

Entries live in a form export

Copy-pasted into a spreadsheet, corrected by hand, out of date by Tuesday.

Twelve transfers, all named "karate"

Matching payments to entrants is a weekend job nobody signed up for.

A printout at the door

One list, one highlighter, and a queue growing while you search for a name.

Registration that runs itself

A public event page in up to three languages, card or bank-transfer payment, coupons, and personalised links per invited club.

Divisions sorted for you

Collect gender, age, weight and rank at sign-up, then auto-sort entrants into eligible divisions — or let them choose.

Draws without the whiteboard

Generate brackets straight from your divisions and record match results as they happen — the day keeps moving.

Every format your sport uses

Single and double elimination, round-robin pools into a final stage, and full placement draws that play out every position — with seeding and same-club separation applied for you.

Run the day from a tablet

Tap the winner and the bracket advances. Hand your mat officials a share link — no login, no training, on the phone they already carry.

Everyone can follow along

A public bracket page updates as results land, so parents in the stands and coaches at home see the same thing — plus a big-screen display for the venue.

Mats, running order and honest ETAs

Assign divisions to mats and the public programme keeps recalculating estimated times as the day runs ahead or behind.

Weigh-in at the door

Record weight as competitors check in; anyone who lands outside their division is flagged for review before the draw is made.

Podiums that outlive the day

Publish results to a public page; medals land on each athlete's profile and feed the rankings.

Results that outlive the medal

Published podiums land on each athlete's profile and feed seasonal rankings and club standings — a reason to come back next year.

Your money goes straight to you

Card payments land in your own Stripe account — we don't sit in the middle. Bank-transfer and cash entries are tracked with proof uploads and a settle-up list.

The door, handled

Every entrant gets a QR ticket, scanned in from any phone — spectator tickets and entrance scanning included.

Sports halls have terrible signal

Check-ins, scans and match results tapped while the connection drops are kept on the device and sync themselves the moment it comes back.

Every entrant, one announcement

Email everyone at once, keep instructors in the loop, and see entries grouped by club as they arrive.

Spreadsheets when you want them

One-click exports of entrants, divisions and payments — with metric and imperial weight and height columns.

Not just competitions

Gradings, seminars and camps run on the same machinery — registration, payment and check-in included.

Happening soon on Mnemon

New events are published all the time — check back soon.

Free to set up. Pay per entry.

Creating and publishing an event costs nothing. You pay £1 per confirmed competitor entry — one flat rate, nothing to decode — and spectator tickets are yours, we take no cut.

Create your event — free

Organiser questions

What does it actually cost?

Publishing is free. You pay one flat fee per confirmed competitor entry, with no VAT on top. Entry fees themselves go to your own Stripe account — we take no percentage — and spectator tickets are yours entirely.

What counts as an entry?

One credit per confirmed competitor, per event. Spectator tickets, add-ons and gradings never use credits — and if an entry is withdrawn, the credit goes straight back to your balance.

My entrants pay by bank transfer. Does that work?

Yes. Offline entries are first-class: registrants upload proof of payment, you get a settle-up list, and marking an order paid confirms the entry — no Stripe required.

Can the event page be in more than one language?

Yes — write the page in up to three languages (English, Spanish, Greek) and registrants use the one they prefer. You choose which languages each event offers.

Is it only for competitions?

No — gradings, seminars and camps use the same registration, payment and check-in tools. Clubs run their internal gradings through it too.

Also run a club? See Club Management →