CourtShuffle, fair round robins for tennis & pickleball, in seconds

CourtShuffle is a round robin generator and club scheduler. Mark who showed up and get skill-balanced doubles courts instantly. It remembers your whole season, so people meet fresh partners every week, sit-outs rotate fairly with an odd number of players, and every court stays a close game.

Built for real club nights

Members RSVP and see their own courts on their phones. Walk-up guests check in with just their name, no account, no app install. Works for tennis and pickleball, singles and doubles, from 4 players to whole-club nights.

What happens with an odd number of players?

Sit-outs rotate fairly and automatically, nobody sits twice before everyone sits once, and the season ledger keeps court time even across weeks. This is the headache CourtShuffle was built to end.

Open play, leagues, and finding your people

Open play rotation builds each round on the spot from whoever is present, balances teams by skill, and never repeats the same foursome while alternatives exist, building the games is always free. League captains get sealed lineup exchange, and the public directory helps players find tennis and pickleball clubs and courts near them, anywhere in the US and Korea.

Measured, not promised

We ran the production engine through 186 simulated club nights (16–57 players, 2–13 courts, 6,756 games) against a fairness-aware random baseline. The results: 86% tighter matchups (average team rating gap 0.26 vs 1.79), 49% fewer repeat partners, and court time within one game of even in 96% of sessions, each schedule generated in about 0.2 seconds. Across a simulated 8-week season with realistic 55–85% turnout, court-time imbalance drops 73% and "stuck with the same partner 3+ times" drops 34%.

What does it cost?

Building and generating schedules is free, you only pay to lock a session in. The first 50 tennis clubs and 50 pickleball clubs in each country become founding clubs and run free for life.