go to the National Dance Council of America (NDCA) web site. Click on the "event calendar" which lists events and competitions for the entire calendar year. Each competition is different as per the organizer. You can "link" to the competition of your choice however, you probably will not know who in terms of professionals will be competing until the date of the competition draws closer to when the entry deadline is completed. Also, you can go to the "dancesport series" web site which also lists competitions by the region of the country and this will give you links to the competitions in that region of the USA. For the most part, regardless of competition, you can purchase evening tickets on the internet well in advance of the night the pros compete and either have the tickets mailed to you if you order early enough or pick the tickets up at the registration desk at the competition.