Thursday's French Open round of 64 pits Kimberly Birrell against Oleksandra Oliynykova on clay. Oleksandra Oliynykova has won 3 in a row and 6 of the last 10 overall. Kimberly Birrell has won 5 of the last 10.

Oleksandra Oliynykova has had the better of this rivalry, winning 1 of 1 against Kimberly Birrell. On clay specifically it reads 1-0 Oliynykova — worth more than the overall number this week.

Oleksandra Oliynykova is clearly higher-rated on clay — our number puts Oliynykova around 79%. Anything other than a Oliynykova win would rank among the bigger surprises of the week.