Yes, easy to do, but specifics depend on how you're scoring your players. If it is simply by points earned in the tournament, then you just set the Overall Score formula (in the Stats Profile on the Stats tab) to something like:
sum(top(10, listPoints))
When inserting this formula should the formula show up in the "Create Overall Scores using Formulas" text box?
I input this code in the stats profile I am using, testing across 4 games played. Doesn't matter if I change the variable to 1, 2, 3, or 4 it still shows the total scores for all 4 games. And it just shows "1 Formula" in that text box.