There is $500,000 World Marathon Majors title is on the line.
The winner will net $500,000.
The race is chock full of former champions, Olympic champions and course record holders.
Martin Lel joins the fray as well.
Priscah Jeptoo and Tsegaye Kebede are the newly crowned champions.
Ethiopians rule the the roads in the Windy City.
The Ethiopian is on the hunt for that elusive victory.
Patrick Smyth and Jimmy Grabow highlight promising U.S. contingent at the 35th edition.
One of the greatest distance runners in the world isn't finished yet.