Aliaksandra Sasnovich and Tereza Valentova meet in the round of 16 at Athens (Greece) on Thursday. Tereza Valentova is searching for form, having lost 2 in a row (4 of the last 10). Aliaksandra Sasnovich has won 2 of the last 10.

The two have never played — a first meeting always adds a layer of uncertainty the numbers can't fully capture.

Neither the serve numbers nor the ratings separate these two by much, which is why our number stays close to even. This one is close to a coin flip, and the lean toward Valentova is exactly that — a lean.