Tuesday's Beijing round of 16 pits Karolina Muchova against Naomi Osaka on hard. Karolina Muchova is rolling — 4 straight wins, 8 of 10 in recent play. Naomi Osaka has won 8 of the last 10.

Naomi Osaka has had the better of this rivalry, winning 4 of 6 against Karolina Muchova. On hard specifically it reads 4-1 Osaka — worth more than the overall number this week.

Karolina Muchova simply rates much higher on hard, and our number follows from it. The edge belongs to Muchova — real, but not the kind you take for granted at this level.