It began on 11 February with Tusker and Nairobi City Stars and ended on 10 November with Oserian and Rangers.
The winners of the league will earn a place at the preliminary round of the 2013 CAF Champions League and play against the 2012 FKF President's Cup champions at the 2013 Kenyan Super Cup.
Gor Mahia, the former league leaders with 58 points (Tusker were second with 57), needed a win against Thika United to clinch a record thirteenth title, but the match ended in a 1−1 draw.
Leopards, who were third with 57 points (Tusker were ahead on goal difference), also needed a win for a chance at a record thirteenth title as well, but lost 1−0 away to Chemelil Sugar.
The league was halted at the end of 20 May to give teams a chance to rest and make possible changes in their squads during the mid-year transfer window.