You will be automatically assigned to a team. To me, it's not so much a competition. These "teams" are support groups. (LOL) The first challenge I ever did (the one I'm currently in) I tried to send a message to everyone congradulating them on their weight loss or trying to give others that gained weight some confidence to keep pushing. The bigger the number of participants.. the harder it is to do. So I figured 4 teams would make smaller groups which in return will make it a little more personal if the number of participants gets up there. I'm going to try to bug you all so I hope you guys are ready to be sick of me (haha).
At this point, don't know if it will change, it is showing me that you are on the RED Team.