The Istanbul Friday League was founded in 1912, and replaced the Istanbul Sunday League in 1915. Seven clubs took part in the league when it was first founded in 1912: Anadoluspor, Darülfünun, Terbiye-i Bedeniye, Türk İdman Ocağı, Mümaresatı Bedeniye, Şehremini, and Fenerbahçe S.K.
Champions
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| Year | Winner |
|---|---|
| 1915–1916 | Galatasaray |
| 1916–1917 | Altınordu İdman Yurdu |
| 1917–1918 | Altınordu İdman Yurdu |
| 1918–1919 | Unaccomplished due to Mudros Armistice |
| 1919–1920 | Aborted |
| 1920–1921 | Fenerbahçe |
| 1921–1922 | Galatasaray |
| 1922–1923 | Fenerbahçe |
Past winners
edit| Club | Times won |
|---|---|
| Galatasaray S.K. | 2 |
| Fenerbahçe S.K. | 2 |
| Altınordu İdman Yurdu SK | 2 |
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