<page_title> List of United States junior records in athletics </page_title> <section_title> Men </section_title> <table> <cell> 1500m <col_header> Event </col_header> </cell> <cell> 3:36.1+ <col_header> Record </col_header> </cell> <cell> Jim Ryun <col_header> Athlete </col_header> </cell> <cell> 19 years, 79 days <col_header> Age </col_header> </cell> <cell> Mile <col_header> Event </col_header> </cell> <cell> 3:51.3 <col_header> Record </col_header> </cell> <cell> Jim Ryun <col_header> Athlete </col_header> </cell> <cell> 19 years, 79 days <col_header> Age </col_header> </cell> </table>
At 19 years old, Jim Ryun made the United States's junior records for the 1,500 m with 3:36.1, and for one mile with 3:51.3.