Illinois' Corey Hammon sails to the pit during the decathlon long jump at the Drake Relays athletics meet, Wednesday, April 23, 2014, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
South Dakota's Tansha Clarke clears a hurdle in a heptathlon 100-meter hurdles heat at the Drake Relays athletics meet, Wednesday, April 23, 2014, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)