<page_title> Kahmari Montgomery </page_title> <section_title> Personal bests </section_title> <table> <cell> 400 m <col_header> Event </col_header> </cell> <cell> 44.58 <col_header> Time </col_header> </cell> <cell> USA Championships <col_header> Competition </col_header> </cell> </table>
At the USA Championships Kahmari Montgomery's personal best time was 44.58 in the 400 m.