Built for pickleball groups and clubs.

Achievements fire once and are done. Milestones are the eighteen counters underneath them, and they never stop: total games, singles and doubles played, singles and doubles won, shutout wins, upset wins by rating gap, sessions attended, sessions booked, tournaments played and won, rating peaks, opponents faced, partners played with, best win streak.

Each track is a ladder rather than a single target. Ten games, then twenty-five, then fifty, a hundred, two-fifty, five hundred. So a player who is 216 doubles games in is not staring at a bar that filled up two years ago.

The part that makes it worth opening is the estimate. Volii knows how often you actually play, so a card doesn’t just say 216 of 250, it says roughly three weeks away, and marks the tracks you’re closest to. Tracks with nothing to forecast against say so instead of guessing.

Everything already reached collects in a Trophy Case underneath, with a multiplier on each track showing how many tiers of it you’ve cleared.

A session can carry a total cost, court rental and the like, split evenly across everyone who played. Balances doesn’t just total one session; it nets every outstanding share against every recorded payment between the same two people, across every session they’ve shared. If Alex owes Sam $12 from one session and Sam owes Alex $8 from another, Balances shows one clean “Alex owes Sam $4,” not two contradictory line items.

The Balances dashboard surfaces “You Owe,” “You’re Owed,” “Your Net,” and the club’s total outstanding at a glance, plus a searchable list of who owes who and a record of every payment already made.

Singles and doubles are tracked as two separate rating tracks per player, Singles ELO and Doubles ELO, each with its own rank. By default, a new doubles team starts from the average of its two players’ Singles ELO, then moves as a team from there, so a strong doubles player who’s mediocre at singles doesn’t get one muddy number. Admins can switch Doubles ELO to rank individuals instead of teams at any time, and the change is reflected immediately.

A game logged from the dashboard updates ELO immediately and feeds every other feature: leaderboard, achievements, streaks, rivalries. Ratings move faster for newer players and level off as you play more, so one early loss doesn’t define a season and one early win doesn’t overstate it. Each new season resets the active leaderboard to a fresh start, while career-best peaks stay on your profile for good.

Two structures: Round Robin (everyone plays everyone once, ranked by wins then point differential then seed) and Single Elimination (a power-of-2 bracket with byes auto-assigned to the weakest seeds). Two compositions: 1v1 Singles or 2v2 Doubles, with the organizer pre-pairing partners at creation.

Seeding is a single ELO sort at the moment the bracket locks. Singles seeds by the player’s Singles ELO; doubles seeds by the average of the two partners’ own Singles ELO. A live Standings table, and for single-elim a visual Bracket, update as completed matches feed results straight back into each player’s overall ELO and stats. Tournament wins feed the achievement engine too: “Tournament Champion,” “Back-to-Back,” “Flawless Victory,” and the lowest-seed-wins “Upstart.”

The organizer’s real job in most groups is remembering: who is playing, that it moved to the other courts, that four people still owe for last week. Volii sends that instead.

The evening before, everyone on tomorrow’s session gets one message, not one per session, because somebody with two bookings does not want two emails. When something changes, the people on that session are told it moved or was cancelled rather than finding out at the court. Once a week, anyone carrying a balance gets a single line on what they owe and to whom, netted across every session, not one message per debt. The morning after, a recap of how you did, and at the end of a season, where you finished.

Four switches control all of it, grouped by what arrives rather than by which template produced it. Anyone can turn a topic off from a link in the footer of the email without signing in first. Account notices like password resets aren’t a topic and always send.