The 2006/2007 season was successful and the club was promoted from TFF First League to Turkish Süper Lig.

They played 2007–2008 season under the same name, however, after growing speculations, on 18 July 2008 the club's name changed yet again to that of Hacettepe SK.

still uses GB Oftaş's red and black colours, but old Hacettepe's legendary purple added to them.

[citation needed] 2008–2009 season was disastrous for Hacettepespor and they were relegated to Bank Asya First League despite defeating Galatasaray 2–0 on May 1 at Round 30 because Gençlerbirliği was beaten by İstanbul Büyükşehir Belediyespor 3–1.

Hacettepespor tried to escaping from relegation in Bank Asya First League in 2009–10 season but they failed.