Here are the ranking guidelines by which leaderborads are determined in Tours an Tournaments:
Tournaments rank based on lowest score.
Tours, currently, rank by number of tournament wins, then number of top 10 tournament finishes, followed by top 20 tournament finishes, and finally lowest total strokes.
We reserve the right to change these rules at any time, as we are considering a FedEx Cup-like point system for Tours in the future. We are unclear, at this time, if the point system will be implemented by launch or not.