The exhibit will run from April 7-May 11.
The Iowa race has hosted the U.S. Championships three times before, most recently in 2010.
With new leadership, a sold-out field and a new CEO, the LA Marathon appears to be back on the fast track.
Many roads and sidewalks are simply unsafe to run on.
The 40-year-old juggles family life with a full-time job and a full-time running habit.
Track specialists Molly Huddle and Sally Kipyego will make their half-marathon debuts on the women's side.
The Olympian was forced to withdraw from the Rock ‘n’ Roll New Orleans Half Marathon with the flu.
The Hansons-Brooks athlete has not run since November because of the ailment.
Kenyan Moses Mosop, second at Boston in 2011, also announces withdrawal from race.
Mary Cain, U.S. 1,500m champion, withdraws with a calf injury.