The third and final race weekend of NASCAR’s three-year deal with the city brought fans from throughout the country, with first-time race attendees and seasoned fans flooding through the gates.

Drivers hit the street course for the Loop 110 Xfinity Series race Saturday afternoon. Fans will be enjoying the action all weekend-long.

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