6. Brittley Humphrey (Hoover, AL)
Event: Girls' 100m hurdles (4:20 PM), 300m hurdles (5:20 PM)
The juice: Humphrey was the key to Hoover's indoor national title in the shuttle hurdle relay. Last outdoor season, she took fifth at New Balance Nationals Outdoor in the 400m hurdles and second at the World Youth Championships in the 100m hurdles. She currently ranks fifth in the country in the 100m hurdles and third in the 300m hurdles.