12.08.1945
foundation as Turn- und Sportverein Ahlen 45 (amalgamation of 8 local clubs dissolved during or after World War II)
01.06.1996
merger with SuS Blau-Weiß Ahlen and renaming to Leichtathletik Rasensport Ahlen
01.07.2006
renaming to Rot Weiss Ahlen