- On the database tab, right-click on a player you want to delete and select 'Delete <player-name>'. Do this for each duplicate.
- After you've deleted all of your duplicates, load each of your tournaments, one at a time.
- For each one, go to the Players tab, and look for players that aren't in your database. They will be a lighter color, in italics.
- If the player should be in your database, but isn't, then I'll assume it's because that player was one of the "duplicates" you deleted in your database. Double-click the player, then on the Edit Player dialog press the Merge button. Then select the correct player in the database. When you're done with all of the players, save the tournament.
Now you've deleted all of your duplicate database players. And you've reestablished the correct relationship between each player in your tournaments with the proper player in your database.