Coco Gauff and Marta Kostyuk meet in the quarterfinal at Cincinnati on Saturday. Coco Gauff comes in at 8 wins from the last ten. Marta Kostyuk has won 3 in a row and 8 of the last 10 overall.
Coco Gauff simply rates much higher on hard, and our number follows from it. Little separates them; Gauff gets the nod on the finest of margins.