<page_title> Swimming at the 2015 World Aquatics Championships – Men's 50 metre freestyle </page_title> <section_title> Semifinal 1 </section_title> <table> <cell> 1 <col_header> Rank </col_header> </cell> <cell> Nathan Adrian <col_header> Name </col_header> </cell> <cell> United States <col_header> Nationality </col_header> </cell> <cell> 21.37 <col_header> Time </col_header> </cell> </table>
Adrian made an American Record with a time of 21.37 in the semifinals.