Maes won at least one trophy each season from the start of her career in 1994, at her clubs Anderlecht, Eendracht Aalst and Rapide Wezemaal. The midfielder then moved abroad (Willem II, Djurgarden, Duisburg). At the national women’s team, which was not yet known as the Belgian Red Flames, she made her debut on 6 March 1996 as a substitute in Budel against The Netherlands (4-0 loss). She later became captain of the national team.