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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
PricingPlans from free, sized by athletes and eventsPer-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 has seven plans sized by the athletes and events you actually run — free for a developing federation, €99 a month for up to 1,000 athletes paid yearly — and no per-entry surprise on the day. Every price is negotiable; see the 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 has seven plans sized by the athletes and events you run each year, from a free Development plan (up to 30 athletes, one event) to Enterprise, which is quoted individually. Paying yearly takes 23% off — a federation with up to 1,000 athletes pays €99 a month. Live streaming and the iOS/Android streaming app are included; optional add-ons can be bundled at a discount. Every price is negotiable, and the calculator at /pricing shows your figure. 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. Plans from free — see the calculator at /pricing.

View pricing

Sumo Cup runs on Martial Cup

The same competition platform runs Wrestling Cup and is set up for judo, karate, taekwondo, Brazilian jiu-jitsu, boxing, kickboxing, Muay Thai, MMA and sambo. One system for every combat sport, from entries to rankings.

Martial Cup: software for every combat sport