The Primera FEB, formerly known as LEB or LEB Oro, is the second basketball division of the Spanish basketball league system after the Liga ACB. It is run by the FEB. The FEB leagues are divided into three categories. The league was founded in 1996 and is played under FIBA rules.
The league is contested by 18 clubs. Each season, the top-finishing team in the Primera FEB are automatically promoted to the Liga ACB. From Wikipedia
