Friday's Hamburg quarterfinal pits Anhelina Kalinina against Tamara Korpatsch on clay. Anhelina Kalinina has won 6 of the last 10. Tamara Korpatsch is 5-5 across recent matches.

This is the first career meeting between the two, which means no head-to-head baggage on either side of the net.

Anhelina Kalinina simply rates much higher on clay, and our number follows from it. This one is close to a coin flip, and the lean toward Kalinina is exactly that — a lean.