Both the men's and women's team play at the national level of Belgian football.

Olsa Brakel remained in the Provincial Leagues for four decades, until in 1990 it reached the national level for the first time, easily maintaining itself in the Belgian Fourth Division.

The following season the club even finished second, its best result ever, before starting a decline again, eventually relegating back to the Provincial level in 1997.

In the Belgian Cup, Olsa Brakel booked its biggest success in 2014–15, when it beat Belgian First Division A team Westerlo 6–1 at home to reach the round of 16, where it lost out to KV Mechelen.

In 2020–21 they reached the same round, losing 6–1 away to league champions Club Brugge.