Arnaldi is not the favorite in this match, however, there are some factors to consider. The Moon is currently in the waning phase in the 6th house, which could be a favorable sign for Arnaldi. Additionally, the ruler of the 10th house is on the 5th/9th axis with the Moon, which could also indicate a successful performance for the player. Therefore, it can be assumed that Arnaldi has a good chance of winning this match.
In the match between Fils and Arnaldi, I am betting on Fils. Although Arnaldi has the advantage in their head-to-head matches with a record of 3-0, Fils has not won top tournaments for a long time and it's time to change that. His high ranking, consistent performances, and experience of winning five-set matches can help him. The home atmosphere will also be in Fils's favor, and his improved skills and physical preparation can help him deal with Arnaldi. Therefore, I believe that Fils has a good chance of winning this match.