Squad Rotation Board for Badminton Doubles

Automatically rotates and scores for 6 friends sharing one court

Problem

A group of friends plays doubles every week and always bickers in the group chat over 'who partners with who, who sat out twice last time, and scores kept in Notes.' Spreadsheets aren't intuitive enough, chat history scrolls away, and the organizer has to recalculate every time.

Solution

A minimal rotation board: enter player count and number of courts, and it auto-generates 3 rounds of doubles pairings that balance playtime, showing who rests each round. Scores and rounds sync in real time, and group members can view via a link without logging in.

Users

Small groups that play badminton, tennis, or pickleball regularly, especially friend groups of 6–8 people.

MVP

Create an event with player count and court count; auto-generate balanced rotation pairings; show matchups and resting players per round; quick score entry and shareable link; works inside WeChat.

Revenue

Free basic tier; premium unlocks historical stats, multi-court management, and ad-free experience; or per-group subscription.

Why now

This pain point recurs in communities, and existing solutions are either spreadsheets or mental math; a WeChat mini-program or lightweight web app can reach users cheaply, and an indie developer can prototype in a week.