Division 1-A Rugby (formerly known as the College Premier Division) is the highest level of college rugby within the United States and is administered by USA Rugby. Division 1-A rugby is modeled after NCAA athletic competitions, with the 37 D1-A rugby schools divided into six conferences, the East, Mid-South, Western, California, Big Ten Universities, and the Red River Conference. The regular season sees all teams in the conference play one another, with the two top seeds qualifying for the playoffs. Playoffs are a single-elimination format, occurring each year in April and May, with the winner of D1-A declared the National Champion. Regular seasons for most conferences are played in the spring, although some cold-weather conferences, such as the Big Ten Universities, play their regular se