For Zilisch, the victory was revenge for last Saturday’s Xfinity race at the Chicago Street Course, where the 36-year-old van Gisbergen ran his 18-year-old teammate wide in Turn 2 to take the lead and win a two-lap shootout for the victory.

Since the inaugural event two years ago, the Cup and Xfinity series have been affected by inclement weather. After both series’ races were shortened by thunderstorms in 2023, the Cup Series ended 17 laps short of the full distance last year because of rain delays.

A 2.2-mile, 12-turn track takes NASCAR drivers through Grant Park and along DuSable Lake Shore Drive, setting a scenic stage.

Unofficial results from the NASCAR Xfinity Series race on July 5, 2025 at the Chicago street course. Shane van Gisbergen, No. 9 JR Motorsports Chevrolet Connor Zilisch, No. 88 JR Motorsports Chevrolet

The work isn’t always glamorous, but pit crews and other support staff play an important role in pulling off successful races.

Who won the NASCAR Xfinity Series race at Chicago? Shane van Gisbergen is the winner, plus full NASCAR Xfinity Series results at the Chicago street course.