Tags: Basketball League, Sports League.
The Greek Basket League (GBL) often referred to as the Greek Basketball League Greek A1 Basketball League or Greek Basketball Championship is the 1st tier professional basketball league in Greece. It is run by HEBA (Greek: ΕΣΑΚΕ). The league is also known as the Greek Basket League OPAP for sponsorship reasons.It is ranked as one of the top 3 level national domestic leagues in European basketball by the European national basketball league rankings.