<page_title> List of United States junior records in athletics </page_title> <section_title> Men </section_title> <table> <cell> 4×400m relay <col_header> Event </col_header> </cell> <cell> 3:00.33 <col_header> Record </col_header> </cell> <cell> Zachary Shinnick Josephus Lyles Brian Herron Sean Hooper <col_header> Athlete </col_header> </cell> <cell> July 23, 2017 <col_header> Date </col_header> </cell> <cell> Pan American U20 Championships <col_header> Meet </col_header> </cell> </table>
Josephus Lyles holds the American Junior record in the 4x400 m relay at 3:00.33, along with Zachary Shinnick, Brian Herron and Sean Hooper set at the 2017 Pan American U20 Athletics Championships.