Octagon and the Turkish Tennis Federation Announce New WTA Tournament in Istanbul, Turkey Inaugural International Tournament to be Held at the Turkish Tennis Federation Tennis Center, April 20-26   Octagon Partners with the Turkish Tennis Federation to Bring WTA Tennis Back to Turkey   McLean, Va. – January 8, 2020 – Octagon and the Turkish Tennis Federation (TTF) … [Read more...] about Octagon and the Turkish Tennis Federation Announce New WTA Tournament in Istanbul April 20-26