Sadri Usluoğlu who worked as executive for Beşiktaş and national team became general manager of İdmanyurdu.

Before the start of the season Kadri Aytaç was the technical advisor and look for foreign transfers.

Coach Bülent Giz has written an article to declare their target in the mid-season.

Mersin İY became fourth with 12 wins, and Osman Arpacıoğlu was most scorer player with 6 goals.

[1] Mersin İdmanyurdu has fought for second place -which provided eligibility for Fairs Cup- with Eskişehirspor, Altay, and Göztepe; and missed the chance of participation in a European cup.

[39] The drawings and results Mersin İdmanyurdu (MİY) followed in 1969–70 Turkish Cup are shown in the following table.

Mersin İdmanyurdu (MİY) 1969–70 Turkish Cup game reports is shown in the following table.