Cockrell in the blocks at New Balance Nationals Indoor
3. Girls 400 hurdles
Record: Ryann Krais, 58.96, 2008
Possible record-breakers: Brandee' Johnson (57.47 in 2015), Anna Cockrell (56.67 in 2015)
Possible record-breakers: Brandee' Johnson (57.47 in 2015), Anna Cockrell (56.67 in 2015)