There are some DS tournaments listed amongst the long list of things to do at US Nationals. Here's the link: DS Tournaments Nintendo DS - Pokemon Diamond & Pearl DS You MUST bring your own Nintendo DS (charged up). You MUST bring your own copy of the game. Each round is best 2 out of 3. No hacks. For more information, go to http://www.dssinglecard.com/origins2008.html 2.00 2008-06-28 19:00:00 Cost is $2.00. As you can see from the list there are other DS games to join. If you want to sign up in advance and add this to your badge, the number is #0887 for the D&P tournament.