What's new

Your header, your chart and the ladder could each give a different answer. A rating and its history now always come from the same pass, and anything still rebuilding says pending instead of showing you a superseded number.

The community Discord is in the footer of every page. Bug reports and “this number looks wrong” reach us there fastest.

Filling in one player’s back catalogue used to crowd out everyone else’s fresh matches. Deep history now fills in around live play instead of ahead of it.

The site left the laptop it was built on. The ladder, every tracked profile, the champion and synergy pages and the published rating method — all public, on real hardware.

Most Arena games are found behind the ladder’s rating frontier, so they used to sit unrated until the nightly rebuild — one player waited twelve hours for eighteen matches. A micro-replay now rewinds the affected slice of the board and re-rates forward every few minutes.

Postgres had lost the statistics its query planner depends on, so the board was walking every tracked player on every request — twenty seconds cold. They are refreshed nightly now, and the same query is an index lookup measured in milliseconds.

Riot’s policy does not allow publishing augment and item win rates, so we serve letter grades computed from the same match data. The underlying number never leaves the server.

Riot returns Arena participants in row order, which is not team order — so a match could be rated as though the wrong three players had been a team. They are sorted into their real subteams before the engine ever sees them.

Hover a champion anywhere a player is in context and their own record leads — games, win, top-3, average place. The champion’s ladder record follows underneath as the yardstick.

Terms, privacy and attribution shipped. The crawler also notices a deleted Riot account and purges what we hold about it.

On patch day a three-game sample could top the tier list. Thin samples no longer lead, and a page reading a barely-played patch says so.

Every constant the engine runs on is on the methodology page, read live out of the engine rather than transcribed. It also labels which numbers came from our own archive and which are still reasoned defaults.

A teammate who stops playing costs you less, and the thresholds that decide what counts as AFK come from our own archive instead of a reasonable guess. Every match shows which adjustments moved your rating, and by how much.

The global notes state Rift values, and Arena runs its own items over its own champion tuning — so this page carries the Arena section and nothing else. One card per change, old value beside new.

A crawler following live Arena matches, a rating engine built for a six-team placement rather than a win or a loss, and a leaderboard to put them on. Running for nobody but us.