It was a full day at the USA Track and Field Championships at Drake Stadium Thursday.
The athletes began at 10 a.m. and won't finish until 9:30p.m.
Channel 13's Michael Admire was at the Blue Oval with more on why this event is so important to Des Moines.
Lolo Jones will be among some other big names competing for a spot at the World Championships in Moscow this august. Jones will line up for her first race Friday evening.