Galatasaray claimed a 2-0 away win against Gençlerbirliği on May 2 in a Turkish Süper Lig game.
Playing in Ankara's Eryaman stadium, Galatasaray's Halil Dervişoülu fired a classy long-shot to break the deadlock in the 44th minute.
The Istanbul football club doubled the gap when Emre Akbaba made a close-range finish in minute 53.
Beşiktaş fans were in seventh heaven on Sept. 14, a day after the Istanbul club made its first ever wining start to the Champions League group stage with a 3-1 away victory at Porto.
Before the fans and the media hailed the victors, Beşiktaş coach Şenol Güneş sang the praises for his players in a post-game press conference.
Besiktaş defeated Porto 3-1 in Portugal on Sept. 13 night in a superb start to the Istanbul club's UEFA Champions League run.
The Group G match at Dragao Stadium saw early action when Brazilian winger Anderson Talisca netted a powerful header in the 13th minute on an assist by Portuguese Ricardo Quaresma.
A goal in the dying minutes gave last season's runner-up Başakşehir its first-ever league victory at Fenerbahçe on Sept. 9, while defending champion Beşiktaş also won in the Turkish Super League.
Başakşehir went ahead as early as the second minute of the game when Joseph Attamah headed in a ball crossed by veteran midfielder Emre Belözoğlu from the corner kick spot.