(CBS) With the Chicago Marathon set to be contested this Sunday in the city, WBBM’s Josh Liss sat down with some of the top officials for a preview of the big race.

You can listen to the full preview below. Here’s a glance at who Liss interviewed.

— Carey Pinkowski, executive race director for 26 years
— NBC 5’s Lauren Jiggets and Mike Adamle, who will be part of the race broadcast
— Chicago Tribune sportswriter Phil Hersh
— Hillary Gelfman, Daley Award for top fundraiser in 2014
— Tim Maloney, Bank of America Illinois president
— Dr. Phillip Skiba, director of sports medicine at Advocate Lutheran General Hospital

Listen below;: