Kelvin Kiptum and Sifan Hassan will line up at the 45th Chicago Marathon this evening against defending champions Ruth Chepng'etich and Benson Kipruto.
Chepngetich won last year's race in 2:14:18 - which, at the time, was the second-fastest performance in history and just 14 seconds shy of the then world record. The 2019 world champion returns to Chicago on the hunt for her third consecutive victory in the Windy City.