Col. Zadok Magruder High School

Rockville, MD

4x100

44.18 - 2014 (Large SchoolsHeats) - Emmanuel Ageyman, Kenny Oxman, Donte Speight, Christopher McKoy

4x400

3:33.51 - 2014 - (54.25), Madiba Massey (53.47), Donte Speight (53.52), Emmanuel Ayemong (52.27)
3:35.10 - 2023 - Joshua Lopez , Riku Yoshida , Logan Brinkman, Colin Abrams

4x100

48.94 - 2014 (Small SchoolsHeats) - Stephanie Davis, Keila Robertson, Zionna Scott, Bethany White
51.26 - 2013 (Small SchoolsHeats) - Jeida Robertson, Celine Antwi, Lindsay Andonion, Keila Robertson

4x400

4:17.11 - 2013 - Celeni Antwi, Lidia Castello, Lindsey Andonian, Shelby Trout
4:20.06 - 2014 - Stephanie Davis, Ayanna Lynne, Keila Robertson, Shelby Trout