ALBUQUERQUE — Mary Cain, the 16-year-old high school junior from Bronxville, N.Y., won the mile at the US Indoor Track & Field Championships on Sunday, becoming the first high school student to win a national indoor or outdoor title since Allyson Felix in 2003.
Although Cain’s time of 5 minutes 5.68 seconds was fairly slow, that didn’t bother Cain.
‘‘I don’t worry about time,’’ she said. ‘‘I go in there to race and that’s what I did today.’’
Cain ran at the front of the pack then used a big kick, taking off with 200 meters to go to build a big lead, then held off 31-year-old Treniere Moser (5:06.55) through the finish.
“I was kind of glad I was in the pack, and I know I have a kick so I thought if nobody wants to go now I’ll really go the last 400 and kill it in and that’s exactly what I did,’’ she said. “I knew that I have a good kick and as long as I am in it, I have a good shot to win.”
On the men’s side, Will Leer ran the fastest indoor time ‘‘at altitude’’ in winning in 3:58.79.
Leer also won the 3,000-meter run Saturday, giving him his first two national championships in a weekend.
Jeremy Wariner, a three-time Olympic gold medalist and five-time world champion, won the 400 in 45.82, despite it being his first indoor race since 2004.