Following each Grand Prix, Pro Tour and Worlds event, players are ranked according to Pro Points accumulated from all Grand Prix and Pro Tour events (up to and including the World Championships) for the beginning of the current season. This ranking is called the Player of the Year Standing.
The Player of the Year Standing is used to determine the Pro Player of the Year, Rookie of the Year and membership level in the Pro Tour Players Club.
Membership level in the Pro Tour Players Club is used to determine invitations or byes for certain events. In such cases, players receive the invitation or bye based on their Pro Tour Players Club level on the first day of the event.