Nascar Chicago 2025. 2025 nascar chicago street race weekend began saturday. Everything you need to know for sunday's grant park 165 on the chicago street course, the 20th race of the 2025 nascar cup series season.

Congratulations alex bowman on winning the 2025 the grant park 165 nascar cup series race at chicago! Nascar’s second trip into the windy city to run the chicago street course comes with a handful of changes to competition procedures from 2023.