In the match between Ksenia Onukova and Vera Zvonareva, Zvonareva is predicted to win 2:1. Their matches often go to three sets, indicating a close competition. Zvonareva shows consistent play and the ability to win key points. It is also worth noting that Zvonareva has a lot of experience and physical stamina, which could be a deciding factor in a long match. Onukova, on the other hand, sometimes makes nervous errors in crucial moments, which can negatively impact her performance. Overall, considering their previous results and current form, one can expect Zvonareva to win this match with a slight advantage.