Mary Washington Regional

The Mary Washington Regional is a regional tournament in Virginia held at the University of Mary Washington, that mainly serves the western Washington D.C. area of Virginia. Since 2012, the regional has also been hosted by Langley High School, Stone Middle School, George C. Marshall High School, W.T. Woodson High School, and Lake Braddock Secondary School.

Division B

 * 1In 2012, a second team from Kilmer Middle School took 3rd with 162 points.
 * 2In 2013, a second team from Churchill Road Elementary School took 2nd with 140 points.
 * 3In 2014, a second team from Longfellow Middle School took 2nd with 98 points, and a second team from Lake Braddock Middle School took 4th with 112 points.
 * 4In 2015, a second team from Longfellow Middle School took 2nd with 61 points.
 * 5In 2016, a second team from Kilmer Middle School took 2nd with 126 points, and a second team from Lake Braddock Middle School took 4th with 128 points.
 * 6In 2017, a second team from Longfellow Middle School took 2nd with 58 points, and a second team from Luther Jackson Middle School took 4th with 132 points.
 * 7In 2018, a second team from Longfellow Middle School took 2nd with 91 points.
 * 8In 2019, a second team from Longfellow Middle School took 2nd with 89 points.

Division C

 * 1In 2014, a second team from Lake Braddock Secondary School took 3rd with 120 points.
 * 2In 2015, a second team from Thomas Jefferson High School for Science and Technology took 2nd with 58 points, a third team took 3rd with 68 points, a second team from Langley High School took 5th with 131 points, and a third team took 6th with 139 points.
 * 3In 2016, a second team from Thomas Jefferson High School for Science and Technology took 2nd with 67 points, and a third team took 4th with 105 points.
 * 4In 2017, a second team from Thomas Jefferson High School for Science and Technology took 2nd with 118 points, and a third team took 4th with 166 points.
 * 4In 2018, a second team from McLean High School took 3rd with 149 points.

Division B

 * Chesterbrook Elementary School
 * Churchill Road Elementary School
 * Crossfield Elementary School
 * Forestville Elementary School
 * Lemon Road Elementary School
 * Louise Archer Elementary School
 * Mantua Elementary School
 * Navy Elementary School
 * Oak Hill Elementary School
 * Oakcrest School
 * Poplar Tree Elementary School
 * Spring Hill Elementary School
 * Thoreau Middle School

Division C

 * Briar Woods High School
 * Fairfax High School
 * Flint Hill School
 * Lake Braddock Secondary School
 * McLean High School
 * Oakcrest School
 * Osbourn Park High School
 * Patriot High School
 * Stafford High School
 * Thomas Jefferson High School for Science and Technology
 * West Springfield High School