A spot in the next round is at stake on Wednesday, when Keegan Smith goes up against Vit Kopriva in the Jinan round of 16. Vit Kopriva is searching for form, having lost 2 in a row (3 of the last 10). Keegan Smith has won 5 of the last 10.

On paper it's close: comparable ratings, comparable serve numbers, small margins everywhere. Smith comes in off a compressed schedule. Little separates them; Kopriva gets the nod on the finest of margins.