Free Judo scoreboard
Keep Judo score live on your phone and share the match with anyone — free to watch, no account needed to follow along.
When the ippon lands, the match is over — and everyone at the edge of the tatami should see it happen. With Score Zen you tap waza-ari, ippon, and shido from your phone as the referee calls them, and the live score updates for anyone watching. It fits a club randori, a weekend shiai, or grading day at the dojo — spectators just scan a QR code to follow along.
Why score Judo with Score Zen
- One-tap scoring, built for Judo
- Share the live score by QR code or link
- Free for spectators — no app to install to watch
- Keeps working if the connection drops
- 34 sports, tournaments and standings included
How Judo scoring works
Two positive scores exist: ippon (instant win) and waza-ari (an intermediate score). Two accumulated waza-ari equal one ippon and win the bout. Penalties (shido) do not give points to the opponent, but a fighter who receives three shido is disqualified (hansoku-make). If the score is tied at the end of time, golden-score overtime is decided by the first advantage scored.
Match format
A senior bout lasts 4 minutes of stopped time; the clock is halted at every referee interruption. If tied, a golden-score overtime (no time limit, sudden death) decides the winner.
How to win
You win by ippon, by two waza-ari, by disqualification of the opponent (hansoku-make, notably three shido), or by having one more waza-ari at the end of time. If tied, golden score decides.
Recommended Score Zen setup
In Score Zen, tap 'Ippon' (the bout ends automatically) or 'Waza-ari' (two waza-ari also end the bout). A 'Shido' counter tracks penalties. The app does not auto-disqualify at three shido and does not handle golden score: those cases are settled manually by the referee. A 4-minute clock paces the bout.
Frequently asked questions
How can people watch the judo score without downloading an app?
They don't have to. Anyone can watch for free with no account — share the match link or let them scan the QR code, and the live score opens in their browser. You keep scoring with one tap, and every ippon, waza-ari, and shido appears on their screen instantly, with no ads.