TrackDIFF

The build TrackDIFF shows for a champion in its main role: starting items (+ trinket), the highest-win-rate core three-item builds, situational items, full build paths, skill max orders and level-by-level skill points, summoner spells, rune pages with stat shards, and final-item presence — each with games and win rate (0–1). Items, runes and spells are Data Dragon numeric ids. `patch` is the patch the numbers come from (TrackDIFF falls back one patch when the newest has too few games unless you pin `patch`). `null` means no build data for that champion/patch yet.

Without `champion`: the current-patch champion board (top `limit` rows by TrackDIFF's tier grade): rank, champion, games, win rate, pick rate, ban rate (all 0–1), tier grade (S+…D), roles played and worst matchups, optionally for one role and one rank bucket. With `champion`: that champion's headline stats, per-role split, and its board standing, pinnable to a `patch` like "16.17". Stats are ranked solo/duo from the games TrackDIFF tracks. For items/runes/skill order call `get_champion_build`.

One public event by slug: its summary (name, kind, status, dates) and the standings board — each member's rank, Riot ID, region, current tier/division/LP, persona and team tag, done/failed flags, and the kind-specific `progress` payload (LP gained for a race, challenge counters, …). `peak: true` shows the board as a record (best standings, hidden members re-admitted) instead of live. Unknown slug → an error; find slugs with `list_events` or `search`.

One page (100 rows) of a region's Master+ ranked solo/duo ladder as TrackDIFF shows it: rank, Riot ID (summonerName#tagLine), tier/division/LP, wins/losses, LP change over `span`, whether the player is live-streaming or in a game, and their public persona (streamer/pro) if any. `board: "prestige"` is the global Master+ board filtered to ≥69% win rate and ignores `region`. Use `get_rank_cutoffs` for the Challenger/Grandmaster thresholds and `get_player_profile` for one player. Pages beyond 10 are not served — this is an answer, not a dataset.

A public TrackDIFF persona (a streamer or pro player) by site slug or display name: their linked Riot accounts with region, current tier/division/LP and whether they played recently, live status per platform (Twitch/Kick/SOOP) with stream title and start time, social links, esports team, best champion-board standing, and recent clips. Only accounts the owner made public are listed. `found: false` means no persona matches — try `search` with the name. For one account's ranked detail call `get_player_profile` with its Riot ID.

Whether an account is in a ranked game right now and, if so, the lobby TrackDIFF shows on its Live Game tab: `gameId`, `startedAtMs`, bans, and all ten participants with champion, team, summoner spells, keystone, current rank/LP, primary role, their win rate on the champion they are playing (0–1), and public persona. `in_game: false` means no game is in progress (or the account is not indexed). Data comes from TrackDIFF's own live-game tracker and may lag a game start by a minute or two.

One League of Legends account by Riot ID: identity (Riot ID, level, primary role, linked public persona), current ranked solo/duo standing with wins/losses, this split's peak, apex ladder rank (null below Master), the most-played champions with win rate/KDA/CS per minute, and recent form summarised from the last 20 solo games (wins, losses, win rate, average K/D/A). `indexed: false` means TrackDIFF has not seen this account; no data is fetched on demand. Win rates are 0–1 fractions; timestamps are Unix ms. For the game they are in right now use `get_player_live_game`.

A region's apex cutoffs right now: the LP needed for Challenger and for Grandmaster (`challengerCutoff`, `grandmasterCutoff`), how many players hold each apex tier, how much each cutoff moved since the region's midnight (`*DeltaToday`, null when unknown), when the ladder snapshot ran (`updatedAtMs`), and the primary-role mix of the top 200. Cutoffs are positional (Riot's apex slots), not a formula.

TrackDIFF's public events — ranked races, team events, champion challenges — as hub cards: slug, name, description, kind, lifecycle status (scheduled/active/ended/…), start/end dates, roster size and the regions the roster plays on. Filter by `status`, `featured` (the curated hub) or `kind`. Call `get_event_standings` with a card's `slug` for its leaderboard.

League of Legends streamers live right now that TrackDIFF tracks, as cards: display name, platform and channel, stream title, viewer count, the champion they are playing (`liveChampionId`), their best account's rank, primary role, region and top champions. Filter by champion, role, tier or region; 24 cards per page. Empty rows mean nobody matching is live. For one streamer's full page call `get_persona`.

The site's typeahead over everything TrackDIFF indexes: players (whole ladder, typo-tolerant; each with region, tier/division/LP, persona and whether they are in a game), personas (streamers/pros, with live status), champions (name and slug) and events. Use it to turn a half-remembered name into a Riot ID, persona slug, champion slug or event slug for the other tools. `resolveHint` is set when the query is already an exact "Name#TAG". `source: "fallback"` means the full-ladder index was unavailable and players are apex-only.