Game by game player grades are available in Premium Stats 2.0 with ELITE - Annual, and ELITE - Monthly subscriptions.
You can find these grades by viewing a player's home page or by going to "By Position" and selecting a specific week in the season.
If you have any questions or concerns regarding Player Grades or game-by-game Player Grades, please feel free to reach out to our customer service team at support@profootballfocussupport.zendesk.com