The 17-year-old high school phenom makes history at nationals.
Frazier, Leingang set 5,000m meet records.
The high school star will compete in both the 5,000m and 2-mile events.
We all started running for different reasons, even if it's not the same reason we run now.
The 16-year-old will run the Cleveland Marathon in May.
Southerland runs the second-fastest indoor 800m ever by a high schooler.
She won by one one-hundredth of a second over Erin Finn of Michigan.
Twenty-five finalists will be announced in June.
Many meet records fall at third annual indoor event.