Tennis session tracker & rankings app

RallyMouuu runs tennis sessions the same way it runs any other racket sport: pick who's playing, generate a fair singles or doubles rotation across your courts, and track a tennis-only Elo/MMR ladder from every submitted score.

How do you track a tennis session with RallyMouuu?

Create a session and set the sport picker to Custom, then type “Tennis”. From there it works exactly like a preset sport: pick who’s playing from your crew roster, choose singles or doubles, tell Rally how many courts you have, and it generates the whole rotation — who plays whom, on which court, in which round. Score each match as it finishes (by games won or with the match timer) and your tennis ladder updates from the results.

Why isn’t tennis a one-tap preset yet?

RallyMouuu currently ships three one-tap presets — Badminton, Pickleball and Volleyball — the sports its first crews actually run. Tennis isn’t one of them yet, but the Custom sport option gives you the identical fair-rotation engine and an independent Elo/MMR ladder, just with one extra step of naming the sport yourself the first time you create a session.

Does the fair rotation handle tennis doubles?

Yes. Choose 2v2 and Rally pairs players so partnerships rotate — the least-repeated pairing plays together first, so everyone eventually partners with everyone. The same Balanced, Mixed and MMR gender/skill strategies used for badminton and pickleball doubles apply here too — see how the fair doubles round-robin works.

How does the tennis Elo/MMR ladder work?

Every player starts at 1000 and Rally runs the same margin-aware Elo it uses for every other sport — K=32, weighted by scoreline so a lopsided set moves ratings more than a close one. The ladder is tennis-only: if your crew also plays badminton, table tennis or pickleball, each sport keeps its own independent 1000-based ladder — a strong tennis MMR gives you no head start anywhere else. See how the solo, pairs and team boards differ.