Substitute Omer Sismanoglu struck in the 62nd minute to seal a 1-0 victory over Mersin Idmanyurdu and Antalyaspor as matched Gala's tally of 26 points, although it has an inferior goal difference.
Fenerbahce had the opportunity to catch up to its fierce rival but at one point it looked like it would take nothing at all from a 1-1 draw at Kayserispor.
Deivson Bobo set up a desperate last push from Fener with his 84th-minute strike and Dirk Kuyt managed to squeeze in an equaliser one minute from time.
Istanbul Buyuksehir's 2-0 win over Sivasspor saw the capital club build a three-point safety cushion above the relegation places.
Samuel Holmen got Istanbul off the mark in the 51st minute and substitute Edin Visca rubberstamped the points with 67 minutes played.
Kasimpasa was the benefactor of a 2-2 draw at Eskisehirspor as Adem Buyuk's late equaliser saw the visitor climb to fifth place.
Ex-Fulham striker Diomansy Kamara nudged the host ahead before Kalu Uche found a way through in the 72nd minute. Eskisehirspor retook the lead seven minutes later through Burhan Eser but fellow substitute Buyuk was there to salvage a point.