Doubles action kicked off with three matches at the TEB BNP Paribas Istanbul Cup being held on the Garanti Koza Arena. Turkish-Romanian tandem Ipek Soylu and Andreea Mitu advanced to quarter-finals after a tight encounter.
After one set a-piece, it was the match tie-break deciding the winner as Soylu/Mitu concluded on their third match point after 1 hour and 27 minutes. 6-3, 3-6, 11/9 win over Czech duo Lenka Kuncikova/Karolina Stuchla sent Soylu/Mitu into last eight.
Last match of the day took place between second seeds Oksana Kalashnikova/Johanna Larsson and local favorites Ayla Aksu/Melis Sezer. Breaking serve for four times, stronger side Kalashnikova/Larsson jamp into quarters alonside Laura Pous Tio/Renata Voracova.