Her second marathon season came in 1989. Aerts began the year with a Belgian record of 1:11:32 hours in the half marathon – a time that won her the women's race at the City-Pier-City Half Marathon.Michiels, Frieda et al (2011-03-13). City-Pier-City Half Marathon. Association of Road Racing Statisticians. Retrieved on 2011-03-17. This record stood for five years, until it was beaten by Marleen Renders in 1994. She was third at the Paris Marathon in a near-personal best time of 2:33:58 hours and won a second title in Brussels, which was also the national championship race that year. Her last marathon outing that year was the Carpi Marathon in October and she again reached the podium, taking third place.World Marathon Rankings for 1989. ARRS. Retrieved on 2012-04-22.
