The South American professional club basketball system or South American professional club basketball pyramid is a series of interconnected competitions for professional basketball clubs in South America. The system has a hierarchical format with a promotion and relegation system between competitions at different levels. There are currently two different competitions on the pyramid – the 1st tier Basketball Champions League Americas, and the 2nd tier FIBA South American League. The 1st-tier level Basketball Champions League Americas is organized by FIBA Americas, and the 2nd-tier level FIBA South American League is organized by the South American Basketball Association (ABASU), which operates as a regional sub-zone of FIBA Americas.
The evolution of the top-tier international South American inter–continental and South American inter–regional professional club basketball competitions (1946—present):
