DES MOINES, Iowa Iowa State 400-meter hurdler Kianna Elahi topped the race that had won her a Big 12 Conference title last month, advancing to the semifinals of the 400-meter hurdles Friday at the USA Track and Field Championships at Drake Stadium. Elahi ran a personal best 57.12, bettering her previous best of 57.40 set in Columbia, Mo. May 16 in the Big 12 final.

More...