By using the Points for Playing field yes, but not from the Stats tab. That is, the formulas applied on the Stats tab don't (and can't) distinguish one tournament from another. To those formulas, all of the tournaments are just sort of in one big bucket and don't really have any order.
But you can accumulate points using the Points for Playing formula on the Game tab instead. That formula allows you to have a different formula per tournament. Then you just need to increase or double the points awarded on the final tournament.