Founded in 1972 by the National Judges Association (NJA),[1] TOB is composed of 439 member bands organized into eleven regions or chapters.
It provides a large array of competitive performance opportunities including marching band, indoor guard, majorette, percussion, and dance teams.
Membership is open to any elementary, middle, junior, or senior high school, as well as any college or university.
Sizes are as follows:[3] In addition to the group sizes, there are three levels of performance classification that a member may elect to participate:[3] Open Class (formerly Championship) – Highest level of competition, intended for experienced bands.
Any unit which has participated in one contest throughout the season is eligible to participate in their respective Chapter Championships, which are usually held the last weekend in April, although in order to be a chapter champion, you must compete in two shows.
Below is a list of past marching band champions organized by group.