German basketball league system

The German basketball league system or German basketball league pyramid, is a series of interconnected competitions for professional basketball clubs in Germany. The system has a hierarchical format, with a promotion and demotion system between competitions at different levels. There are currently six different competitions on the pyramid: the 1st-tier level Basketball Bundesliga (BBL), the 2nd-tier level ProA, the 3rd-tier level ProB, the 4th-tier level 1.Regionalliga, the 5th-tier level 2.Regionalliga, and the 6th-tier level Landesliga Oberliga.