Built over a year of real match days and 19,161 games. Rotations, scores and dues take care of themselves, and members actually open the app.
Since October 2025, tennis clubs have used it every week on real match days. Every rule, from the rotation to the dues table, was fixed one court-side complaint at a time.
Used on every match day of real clubs since October 2025
Every game across 2,397 scored matches
One player in one match counts as one
Times organizers and members opened Tennis Note
Real club records, October 2025 – September 2026 (demo data excluded).
A model checked against 1,663 matches shows each pair's chance to win. When the underdog wins, it goes down as an upset.
When the rotation is ready, AI explains in numbers why it's fair. Save the scores and it writes up the day: MVP, upsets and close games, read aloud if you like.
7 doubles and 4 singles formats, plus teams, tournaments and group stages, and a draft where captains pick in secret and reveal at once. Max 1-game difference per player.
Pick who's arriving late or leaving early. Their games move back or forward while partners, opponents and game counts stay the same.
From your win rate on each side and your history with each partner, it suggests whether you should take the deuce or ad side.
Win rates by opponent and partner, your best partner and your nemesis, weaknesses you didn't know about. Organizers get 11 club-level stats.
Announcements, cheers, a marketplace and guest posts, plus 14 monthly awards and 202 titles to collect. Something to talk about in the group chat.
Clubs on Tennis Note can share a rotation for a friendly, and the scores are recorded for both clubs.
See your court, check other courts' scores and enter yours from a Wear OS watch. Leave the phone in the bag.
Apps only the organizer uses don't last. From match records alone, every member gets all of this.
Club stats build themselves as matches are recorded. No more tallying attendance by hand.
A year of requests from the court, built one at a time.
The top complaint about older rotation apps is getting the same partners and opponents over and over. Every Tennis Note update has to pass an automatic check that builds rotations for 200 random rosters.
Post a sign-up link in your group chat, or upload a screenshot of the chat poll and it picks out who's coming. Then one tap makes the rotation.
Enter scores court-side and records, rankings and monthly awards update on their own.
Look back on the day objectively, even without a coach. Analysis starts as soon as the results are saved.
Invite another club to a friendly, then record a mixed rotation and the results together.
When several clubs form a league, standings build up automatically from their friendlies.
After the match, your record turns into a photo card: magazine cover, award certificate and more, 9 designs.
Who paid, who didn't, reminders and expenses
Match days and court bookings on a calendar
Members join via invite link, you just approve
A rating from NTRP and match results
Brackets with automatic qualifiers
What went well, what didn't, and how you felt
Racquets, strings and shoes, with replacement reminders
Find guests, sell used gear, post lessons
Send the rotation and results as an image
Bring your member list and records over at once
Overwritten rotations can be restored
Easy on the eyes on night courts
Switch languages any time
Sign up with email, Google or Apple and create your club.
Drop the invite link in your group chat and members join on their own.
Pick who's here and make the rotation. Enter scores as you play.
From the clubs in Korea that shaped it over the past year (translated).
Scheduling and rotations for 40+ members used to be our biggest job. Now we see rotations, monthly attendance and everyone's win rate in one place.
My son loves looking at my tennis stats. He checks them before I do every time I come home from a match, so I play harder.
Partners and opponents don't repeat and nobody sits out twice in a row. Making the rotation takes a fraction of the time.
Attendance, the hardest part of organizing, got easy. And the AI comments are a new kind of fun for our members.
Yes. Every feature is free for now.
No. It works in a web browser, and there are iPhone and Android apps too. Members only sign in to see their own records or to sign up for a match day.
Wear OS watches. There is no Apple Watch app yet.
Yes. You can import your member list and match records from an Excel file in one go.
All traffic is encrypted and club data is visible only to that club's members. If you delete your account, your personal data is deleted and your name in club match records is anonymized.
Rotation analysis and match recaps use player names and match records. You can turn AI analysis off in the privacy settings and keep using everything else.
Five minutes is enough to create a club and your first rotation.
