NBC Sports Network. Tag is now a professional sport, which is pretty cool. There are actually eight different leagues across the world that play tag competitively. The only one in the United States is called the National Tug-of-War Association and they have four teams in California. It's a great way to get people outside and active with their friends and families. The most important thing about sports is that they should be fun. If you're not having fun then you're doing it wrong. Tag is a lot of fun and can be used by athletes of any skill level to exercise their minds and bodies at the same time. There are no rules other than don't hurt anyone or anything including yourself. That's about it! Sports include activities that are played according to a set of rules; games are a competition between two or more teams who attempt to score goals by executing plays within a defined area (the field). Although games may involve aggressive behavior, violence, or injury, their purpose is generally for entertainment rather than education or charity. Games are divided into contact and non-contact categories depending on how much physical interaction there is between players on the fields.