Contact

What we're here for

This is the direct line to whoever runs LeagueLab.cc. Data error reports, questions about how a metric is calculated, feature suggestions, requests to add a league or tournament, partnership and advertising enquiries, and copyright or trademark matters all arrive by email. No account or login is needed, and messages in English or Korean are both read. If a number looks wrong, or a stat you wanted is missing, say so — reports are checked against the collection and aggregation code directly, though whether and when a change lands depends on the case.

Email and how to report

Everything goes to the single address below. When reporting a data error, include the URL of the page where you see it, the game ID or the tournament and date of the match in question, and what the value shows versus what it should be — that narrows the cause far faster. A screenshot helps. For questions about a metric, tell us which table and which column you are looking at and we will answer alongside the relevant entry in the metrics guide. For feature suggestions, describing the situation where something felt awkward is more useful than a feature name. For partnership or advertising, a short summary of the proposal is enough.

[email protected]

Response times

This site is run by one person in their spare time, so replies are not instant. Mail is read in the order it arrives; during a tournament window or a large re-collection run it can take longer. Data error reports are often fixed before they are answered, so if a reply is slow, it is worth re-checking the page after the next collection cycle. Putting the nature of your message in the subject line — error report, feature request, partnership — keeps it from being lost to spam filtering.

Who runs this site

LeagueLab.cc is a non-commercial fan project operated from South Korea by an individual with an interest in League of Legends esports data. It launched in 2026, and the batch jobs that collect from Leaguepedia and the Riot API, the API that serves the processed data, and this website are all built and maintained by hand. It is not run as a company or a registered business, so there is no corporate entity or phone line — all contact goes through the email address above. Any advertising revenue goes toward server and domain costs.