Fenerbahce returned to the top of the Turkish Superleague after a 3-0 win against Sivasspor.
The defending champions are level on points with Galatasaray, who had enjoyed two days at the top after their 3-1 win at Diyarbakirspor on Friday.
There are five games to play, and the title may be decided when Galatasaray visit Fenerbahce on 22 April. Genclerbirligi moved into a share of third with Besiktas after they defeated Trabzonspor 1-0 and Besiktas drew 2-2 at home to relegation-threatened Malatyaspor.
There were also weekend wins for Ankaraspor, Ankaragücü and Rizespor.