# League Data Type - leagueID
URL: https://sportsgameodds.com/docs/data-types/leagues

League Data Type - leagueID [#league-data-type---leagueid]

A `leagueID` is used to uniquely identify each sports league. Each league belongs to only one `sportID` (no cross-sport leagues), but each `sportID` typically has multiple leagues. Below is a list of leagueIDs.

One thing worth mentioning is that Teams (`teamID`) and Players (`playerID`) are defined on a per-league basis. So for example, if Arsenal competes both in the English Premier League and the UEFA Champions League then they will have two different `teamID` values, `ARSENAL_EPL` and `ARSENAL_UEFA_CHAMPIONS_LEAGUE`.

Not seeing a league you're looking for? More leagues (including ones not shown here) can be made available upon request through a custom (AllStar) plan. [Contact us](/contact-us) to discuss your needs.