Learn: rankings, ratings & fair play
Short, plain-language explainers on how competitive ranking works in casual sport — and exactly how RallyMouuu turns your games into fair rotations and per-sport Elo/MMR leaderboards. Every page states the real numbers behind Rally's model, not textbook hand-waving.
What is an MMR / Elo rating?
How one number captures skill, and the exact Elo maths RallyMouuu runs — 1000 baseline, K=32, margin-aware.
What is a ladder ranking?
How a ladder orders players by rating, and how a rating ladder differs from a challenge ladder.
How a fair doubles round-robin works
Even playing time, balanced sides, gender mix and rest caps across parallel courts.
Solo vs pairs vs team rankings
Three boards from the same games — and why each answers a different question.
Live scoring & video streaming
Share a real-time scoreboard while you play, and stream the match straight from your phone's camera.
Badminton session tracker & rankings app
Run a badminton night end-to-end: fair singles and doubles rotations, mixed/mens/womens games, and a badminton-only Elo ladder.
Pickleball rotation generator & ranking app
Open-play rotations without the whiteboard: even court time, fresh partners every round, and a pickleball-only Elo ladder.
Volleyball session tracker & ranking app
Pickup rotations at any side size, plus named teams carrying their own Elo — solo, pairs and team boards, volleyball-only.
Tennis session tracker & rankings app
Fair singles and doubles rotations across your courts and a tennis-only Elo ladder — as a custom sport.
Table tennis session tracker & rankings app
Fair singles and doubles rotations across your tables and a table-tennis-only Elo ladder — as a custom sport.
Glossary
Plain definitions: rating, MMR, Elo, K-factor, margin of victory, ladder, round-robin, ghost board.