Analyzing the provided information, the following forecast can be made: Kamilla Rahimova is stronger and in better form at the moment compared to her opponent Varvara Gracheva. A week ago, Rahimova already won against Gracheva with a convincing score of 6-3, 6-2. Although Gracheva may have suffered a defeat in the previous match due to some external factors, it will be difficult for her to change the game scenario now. Rahimova continues to demonstrate good playing form, which has been confirmed by her successes against stronger opponents. On the other hand, Gracheva has not had any game practice since the previous match and has not shown any arguments against Rahimova's game. The overall forecast is that Kamilla Rahimova is likely to win this match.
In this match between Osaka and Sharifova, both players are showing good form and have a high ranking. Osaka previously held the number one spot in the WTA rankings, while Sharifova is currently in the top 50. Sharifova has also had success on clay courts, winning two titles on this surface. Osaka, despite having some knee issues, continues to play at a high level. She displays a powerful and aggressive style of play, utilizing strong serves and powerful shots. On the other hand, Sharifova is a talented player with excellent technique and good physical abilities. She can control the ball well and vary her game. This match is expected to be very interesting and intense. Both players will be fighting for victory, and based on their form and style of play, a long and exciting battle can be anticipated. My prediction is a victory for Osaka, as she has more experience playing at a high level and possesses strong weapons in her arsenal. However, Sharifova will not give up without a fight and should be able to win at least one set. Therefore, my prediction is in favor of Osaka with a total of over 2.5 sets.
