River Hill High School

Clarksville, MD

4x100

46.41 - 2016 (Large SchoolsHeats) - Kyle Thomas, Lawrence Qui, Brandon Scott, Donald Zimmerman
46.64 - 2019 (Heats) - Jeffrey Du, Alex Braisted, Andrew Horraks, Nolan Dietrich

4x400

3:38.34 - 2016 - Kevin Fitzgerald (56.38), Rahul Reddy (55.00), Biendon Fitzgerald (54.93), Donald Zimmerman (52.04)

4x800

8:08.35 - 2008 (Small Schools) - Craig Morgan, Adam Davis, Mike Feroe, Jason Harman

4x100

49.89 - 2019 (Heats) - Janasia Buckner, Ara Omitowoju, Ada Beams, Sydney Robinson
50.80 - 2016 (Large SchoolsHeats) - Rebecca Higgins, Sydney Robinson, Brigette Wang, Tiffany Howell

4x400

4:11.10 - 2016 - Jasmine Tiamfook, Brigette Wang, Rebecca Higgins, Sydney Robinson
4:14.12 - 2019 - Sydney Robinson (1:00.12), Janasia Buckner (1:03.73), Madison Dzubak (1:06.18), Ara Omitowojo (1:04.10)