<page_title> 2019 Alsco 300 (Bristol) </page_title> <section_title> First practice </section_title> <table> <cell> 1 <col_header> Pos </col_header> </cell> <cell> John Hunter Nemechek (R) <col_header> Driver </col_header> <row_header> 1 </row_header> </cell> <cell> 15.632 <col_header> Time </col_header> <row_header> 1 </row_header> </cell> <cell> 122.748 <col_header> Speed </col_header> <row_header> 1 </row_header> </cell> </table>
John Hunter Nemechek was the fastest in the first practice session with a time of 15.632 seconds and a speed of 122.748 mph.