The Spanish Segunda División RFEF is the fourth tier of the Spanish football league system, acting as the highest level of semi-professional football. Following a recent restructuring, it sits below the Primera Federación and above the Tercera Federación. The league is divided into five geographical groups, promoting regional competition and reducing travel costs. Each group winner earns direct promotion to the Primera Federación, with several playoff places available for other high-finishing teams. Relegation sends clubs to the Tercera Federación. The league is characterized by its mix of ambitious semi-professional clubs, reserve teams of La Liga sides, and historic clubs navigating the lower leagues. It is a vital part of the football ecosystem, providing a structured pathway. The main honor is promotion, which represents a step closer to the professional leagues.