2011 Washington Post High School Challenge Index
  National Ranking Index Score
Bruton High 517 2.490
Grafton High 860 1.954
Tabb High 689 2.180
York High 394 2.728

This index takes the total number of Advanced Placement, International Baccalaureate and Advanced International Certificate of Education tests given at a school each year and divides it by the number of seniors who graduated in May or June.