Not yet. The Stats doesn't allow calculating based on conditionals such as the "best" 7 out of 10 games. Still onboard for a future version, but for now you'll have to figure it out yourself.
There is a feature in version 2.3 (still in beta testing) that can help. On the Stats tab, you can switch the view so that you can see a particular data point (such as Points) for each tournament for each player - makes it a bit easier to manually identify each players' best 7 games, for example...