The series comprises Belgium's foremost cross country competitions, including the IAAF permit meeting in Brussels (Lotto Cross Cup Brussels) and the European Athletics sanctioned meeting in Roeselare (Lotto Cross Cup van West-Vlaanderen) – Belgium's only world and European level meetings.
The series typically begins in October and concludes in March.
These points are then combined at the end of the series and the male and female athletes with the greatest totals are declared the winners.
There are also short-course cross country competitions, which are worth half the prize money of the longer races.
Furthermore, the meetings in Brussels, Roeselare and Hannut often attract many high-calibre international athletes.