The unseeded Ramkumar and Perez Sanz eked out a 7-6(5) 6-3 win over the top seeds in the quarterfinals of the USD 75,000 clay court event.
Ramkumar and Perez Sanz saved all eight breakpoints they faced in the one-hour 31-minute match -- four each in two sets. They broke their rivals once in the second set to seal their win.
Ramkumar had earlier lost his singles first round 4-6 4-6 to second seed Russian Karen Khachanov.