Career
Koray Altınay began his career with South Carolina Fürstenfeldbruck before joining Bayern Munich II in 2011. At the end of the season he signed for Jahn Regensburg of the 2. Bundesliga, and made his debut at this level in November 2012 as a substitute for Christian Rahn in a 3–3 draw with 1.
Football Club Union Berlin.
After Jahn were relegated from the 2. Bundesliga, Koray Altınay joined Çaykur Rizespor in July 2013.