I went to the one in Phoenix. But everything got ****ed up on the way there. I live about 2 hours north of Phoenix, so me and my friends made sure to leave early.About a quarter of the way there, traffic came to a halt because of a wildfire along the interstate. It wasn't very big, but it was enough to delay us for about an hour and a half. By the time we got there, it was 2 o'clock and registration ended at 1:30. So we were pissed off about that. But there was a "king of the hill" match setup for those who didn't register. So we waited in line for that for 2 hours, only to be the next to play and have the game shutdown because the tournament was over and they had to pack everything up. Sigh. And I worked so hard on my team for it. At least I connected to 8 pokewalkers and battled one guy. I won too, w00t.
Anyway sorry for my story. But yeah just check the regulations on the pokemon vgc website at
https://www.pokemonvgc.com
-Ken