After a lot of research and work I am now happy to say that Planet Sudoku has statistics for you and other players on the site.
Under the Sudoku click View Statistics. On the next screen you will have the option to filter the results based on game and difficulty. The tabs listed below will help you see what is going on within the site.
Your Statistics: Shows guest and logged in user information.
Global Statistics: Shows performance of users across the site.
Leaderboard: Provides a ranking ability for you to see how you stand compared to other users within the site.