The Peruvian football league system is a complex system. Though the general outline includes the Torneo Descentralizado, Segunda División and Copa Perú, the Copa Perú is very large involving several stages and leagues within it. In addition, the Copa Perú is played within a year. Therefore, clubs who reach level 3 of the pyramid (National stage of the Copa Perú) will have climbed 4 levels in a one-year period.
The system
Both the Segunda División and Copa Perú promote one club to the Campeonato Descentralizado. In addition, the Copa Perú promotes another club to the Segunda División. However, beginning in 2011, the Copa Perú will promote only to level 2 of the pyramid.
References
Peruvian football league system Wikipedia(Text) CC BY-SA