The Pokemon Tournament League pits Trainers in ranked contests against each other, with championships going from regional all the way to worldwide.
Regional tournaments are held within a local segment of a country, and generally are the easiest to enter and participate in. Becoming a Regional Champion is the typical minimum requirement to enter a National Championship. Regional tournaments are unranked elimination matches, usually with sixteen participants at a time each squaring off in one-on-one matches, with recovery between matches.
National tournaments, also known as the Tournament Circuit, provide rankings for participants based on their successes and losses against other ranked participants in National Tournament matches. Often, the winner earns a number of points for the battle as well as some of the opponent's points, meaning that a participant's ranking may change drastically if they have a lucky victory against a high-ranking opponent. National Tournaments are held monthly in most countries, although some countries have Exhibition rules that allow ranked members to duel each other anytime; these are often the most competitive regions.
The Continental Championships are massive and are held once every three months, often with themes based on the season. Like Nationals, they are based on a point system, with champions rising and falling based on their performance against each other. However, Exhibition Matches may be arranged, which have legal standing in the Tournament circuit and are generally treated like Pay-Per-View Prize Fights.
The World Championships are meant for the best representatives from all over the world, and many Continentals do not participate in them. World Champions are ranked extensively and are known for having diverse selections of teams to account for most any known situation, and often retire to positions of power and influence. These Championships are held once every year in the Battle Frontier, and are often grueling matches that transcend ordinary tournament rules - six-on-six fights, 99-ball challenges, five-Trainer-team-fights, and other gimmicks often show up at these Championships. The World Championships does not hold official Exhibitions, but the Battle Frontier matches often use specialty rules that appear in the Championships.