There will be more than 47,000 participants in the 45th Bank of America Chicago Marathon this Sunday. This year will include the event’s millionth finisher and all four 2022 race champions are back. This morning, Ji went to the race expo at McCormick Place to talk to some of the racers!

Spotlight Chicago airs weekdays on WGN from 3 p.m. to 4 p.m.