Hubert Hurkacz and Karen Khachanov meet in the quarterfinal at Beijing on Sunday. Hubert Hurkacz has won 8 of the last 10. Karen Khachanov has won 6 of the last 10.

The serve is where this match separates: Hurkacz has been winning 75.9% of first-serve points to Khachanov's 72%, and on hard that gap compounds fast. Little separates them; Hurkacz gets the nod on the finest of margins.