Tuesday's Guangzhou round of 32 pits Dayana Yastremska against Katie Volynets on hard. Katie Volynets has won 6 of the last 10. Dayana Yastremska has won 4 of the last 10.

On paper it's close: comparable ratings, comparable serve numbers, small margins everywhere. A tiebreak or two would surprise nobody, with Volynets fractionally more likely to land the big points.