Susan Partridge of the United Kingdom ran a personal best of 2:30:46 at the 2013 London Marathon and will come to Chicago in an attempt to qualify for Rio.

“I am delighted to be running the Chicago Marathon this year and greatly look forward to competing in such an iconic race,” Partridge said. “It will be even more special as I'll be following in the footsteps of my coach and former winner, Steve Jones. Every athlete's dream is to represent their country at the Olympics and therefore the Rio Qualification standard is my aim in what will be my only marathon race this year.” (Twitter: @PartridgeSusan)