AAA Cedar Run District

The AAA Cedar Run District is a high school conference in the state of Virginia that includes schools stretching from Manassas to Ashburn. AAA is the largest enrollment class of the Virginia High School League and also typically the most competitive level in Virginia high school sports.

The Cedar Run District schools compete in the AAA Northwest Region with the schools from the AAA Cardinal District, the AAA Commonwealth District, and the AAA Western Valley District.

The Cedar Run District was established in 2001 to serve two purposes. The first was to alleviate crowding in the Cardinal District, and the second purpose was to be a fourth district in the Northwestern Region, after two Southwest Virginia AAA Districts were consolidated into the Western Valley District.

The charter members of the Cedar Run were Osbourn, Osbourn Park, Potomac, and Stonewall Jackson which all split from the Cardinal District. As Prince William County grew, Battlefield High School of Haymarket opened and joined the district in 2004. In 2005, Potomac was moved back to the Cardinal District, but the Cedar Run accepted Culpeper County High School from the Commonwealth District and Fauquier High School of the AA Northwestern District which expanded the district's geography considerably. In 2007, the Cedar Run District welcomed two more members, Liberty High School of Fauquier County from the AA Northwestern District, and Loudoun Valley High School of the AAA National District.

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