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Among the winners in the wheelchair division was a student at the University of Illinois.
Josh Cassidy won the men's wheelchair race at the Chicago Marathon on Sunday, while Tatyana McFadden won the women's wheelchair race.
Cassidy, a Canada native, finished with a time of 1:32:58. Illinois-native Adam Bleakney finished second with a time of 1:34:23. Cassidy previously has won wheelchair races at the 2010 London Marathon and the 2012 Boston Marathon.
McFadden, who is a student at the University of Illinois, said after her win that she was inspired by a young girl who is dealing with spina bifida.
She was spurred on by the appearance of a little girl named Addison with spina bifida she has been communicating with.
"I dedicated the win to her and her family," McFadden said. "It's about inspiring, so that was my theme for the weekend."
McFadden is a decorated Paralympic athlete, and she took home three gold medals and a bronze during the 2012 London games. Those gold medals came in the 400m - T54, the 800m - T54 and the 1500m - T54 events. She took home four medals in Athens in 2008 -- three silvers and a bronze -- and also won medals in Beijing in 2004. Additional details of her accomplishments can be found on her website.