In the 2005–06 season, Mondercange finished third in the Division of Honour. This qualified Mondercange for a play-off with FC Avenir Beggen, which they won, granting them promotion into the National Division. They were relegated the following season from the National Division, back to the Division of Honour. In 2008–09 the club finished 2nd in the Division of Honour and were promoted to the National Division.