Kristina Mladenovic finally notches her first win over the higher ranked Coco Vandeweghe .
Mladenovic sweeps Vandeweghe 7 - 6 , 6 - 3 in a one hour and fifty - three minute first round match .
Mladenovic   finally notches Mladenovic 's first win over the higher ranked Coco Vandeweghe .
Mladenovic sweeps Vandeweghe 7 - 6 , 6 - 3 in a one hour and fifty - three minute first round match .