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Tournament software for sumo

The tournament software built for sumo

Run a sumo tournament end-to-end — registration, weigh-in, bracket generation, live scoring, broadcast overlays and federation reports — on a platform that understands kimarite, dohyō rotation and ESF / IFS weight presets. Transparent monthly subscription, no per-athlete entry fees.

Why generalist tournament software falls short for sumo

Generalist combat-sports platforms can run a bracket — but they don't know what a kinjite is, can't pre-load the ESF / IFS weight categories, and won't lay out a multi-dohyō schedule that respects category windows. Their offline modes assume a venue with WiFi; sumo competitions still happen in regional sports halls where the network is whatever the host has on the day.

Sumo Cup was built from the federation rulebook outward. Every screen — registration, weigh-in, draws, live match recording, report generation — assumes you are running a sumo tournament, not a generic combat-sports event with a sumo skin on top.

Features built for sumo, not bolted on

Sumo weight-category presets

Pre-loaded ESF + IFS weight categories for seniors, juniors, sub-juniors and youth — male and female. Clone a season, edit boundaries once, and every future event inherits them.

Sumo team tournaments (3v3 + substitute)

Native support for the IFS team-tournament format — 3-athlete starting lineups plus one named substitute, bout-by-bout scoring, and one substitution per team for the whole tournament (the system records the match and the bout after which it happened). National-team rosters go through a 3-step federation approval flow. No generalist platform models any of this.

Bracket + group formats

Single elimination, double elimination, round-robin and double-group (group stage → playoff). Repechage handled automatically. Bracket engine is open-source and unit-tested.

Offline-capable weigh-in & live scoring

Hall WiFi gone? Doesn't matter. Weigh-in, draws, match results and report generation all keep working — mutations queue locally and replay FIFO when the network returns.

OBS broadcast overlays

Public overlay URLs (/overlay/*) drop straight into OBS as browser sources. Bracket, current match, scoreboard and category standings — automatic, no manual cues.

Multi-language UI for international events

Nine languages (EN, PL, DE, UK, EL, ES, BG, RU, IT) for the operator side; bilingual public results pages for spectators arriving from foreign federations.

Federation-grade reports

Official report PDF generated from confirmed results — referee signatures, dohyō totals, category podiums, team rankings. Ready to attach to federation rankings without re-typing.

Sumo Cup vs. generalist platforms (Smoothcomp, Challonge etc.)

Generalist tools are excellent at what they do — but they do it for every grappling sport, not for sumo specifically. Here is what changes when the software is sumo-native.

Sumo CupGeneralist platform
Weight-category presetsESF + IFS, by age × sex, cloneable per seasonManual setup per event
Team tournaments (3v3 + substitute)Native IFS format — 3 athletes + 1 substitute, bout-by-bout scoring, one substitution per team per tournamentNot modelled — no 3v3 lineup, bout order or substitution
Kimarite library82 official techniques + dictionaryNone
Multi-dohyō schedulingNative — category windows per dohyōManual
Offline competition flowWeigh-in, draws, matches, report — all offlineRequires connection
OBS broadcast overlaysBuilt-in public URLsAdd-on / external
PricingMonthly subscription from €15/month, scales with usagePer-event or per-athlete fees

Why Sumo Cup is the natural choice

Generalist platforms charge per athlete or per event, so the bill scales with how successful your tournament is. Sumo Cup ships a transparent monthly subscription that starts at €15/month and scales only with the number of events and athletes you actually run — no per-entry surprise on the day. See the pricing calculator at /pricing.

The platform is offline-first for what happens in the hall — weigh-in, draw generation, conducting matches and referee rotation all work the same whether the venue has gigabit fibre or the network is down. OBS broadcast naturally needs connectivity — overlays are served publicly to spectators.

Sumo tournament software — FAQ

What is the best software to run a sumo tournament?
Sumo Cup is built specifically for sumo — preset ESF / IFS weight categories, kimarite library, multi-dohyō scheduling, offline-capable weigh-in and live scoring, and built-in OBS broadcast overlays. Generalist platforms like Smoothcomp can technically run a bracket, but you spend setup time on what is shipped out of the box here.
How does Sumo Cup pricing work?
Sumo Cup is a paid subscription product — there is no permanent free tier. The base subscription starts at €15/month and the total scales transparently with how many events you run per year and roughly how many distinct athletes you serve. The calculator at /pricing shows the actual monthly figure for your usage; international federations can request individual pricing. Competitor entry fees are set by the organising federation and are billed separately from the platform subscription.
Can it run a tournament without internet at the venue?
Yes. Weigh-in, draws, match recording and report generation all work offline. Mutations queue locally on each device and replay in order when the network returns. The web app is installable as a PWA so it survives full venue blackouts.
Does it support double-elimination and round-robin?
Yes — single elimination, double elimination, round-robin, and double-group (group stage feeding a playoff bracket). The bracket engine is open-source and covered by unit tests.
Can it run a team tournament (3v3 format)?
Yes. Sumo Cup natively supports the IFS team-tournament format: each team registers 3 starting athletes plus 1 substitute, bouts are scored one at a time, and each team can use one substitution for the whole tournament (the system records which match and bout it happened after). National-team rosters go through a 3-step federation approval flow before registration locks. Generalist platforms (Smoothcomp, Challonge) don't model team-bout structure or substitutions at all.
Can I broadcast my sumo tournament with this software?
Yes. Every tournament has public overlay URLs (/overlay/*) you drop into OBS as browser sources — bracket, current match, scoreboard, category standings. They update live as referees confirm results.

Run your next sumo tournament on Sumo Cup

Set up a tournament in under fifteen minutes — pick weight categories, set the schedule, open registration. Walk into the hall on the day knowing the platform survives whatever the network does. Subscription from €15/month, see the calculator at /pricing.

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