SportsLine's model has simulated the 2025 NASCAR Chicago race and Round 2 of the NASCAR In-Season Challenge 10,000 times and released its three best NASCAR longshots

Here is the live-race updates page for the NASCAR Cup Series Grant Park 165 at the Chicago Street Course. This post will be updated throughout Sunday's race with key updates, video highlights, and results as they happen live.

Temperatures cooled down for Sunday afternoon's main event, the NASCAR Cup Series Grant Park 165. There was a chance for rain in the forecast — something that's caused the main race to be shortened in each of the first two Chicago Street Race events.