Complex sentence: It started on 28 July 2012 with the first match of the regular season between Kortrijk and defending champions Anderlecht, and will conclude 26 May 2013 which is the return leg of the European playoff.
Split into simpler sentences: It started on 28 July 2012 with the first match of the regular season between Kortrijk and defending champions Anderlecht. The last match will be played on 26 May 2013 which is the return leg of the European playoff.