Overview
- Shane van Gisbergen became the first driver since October 2024 to sweep Xfinity and Cup poles on the same weekend with an 89.656-second lap.
- He converted his pole into a dominant Loop 110 victory, leading 27 laps to claim his fourth career Xfinity win and second straight at Grant Park.
- Katherine Legge delivered a surprise late run in Cup qualifying to bump Corey Heim and secure the final spot, producing the first non-Daytona DNQ in seven years.
- William Byron, Denny Hamlin and Chase Elliott failed to post qualifying laps after practice issues while Bubba Wallace was the slowest qualifier among 38 cars.
- Grant Park drew a packed crowd under scorching temperatures and the NASCAR Cup Series Grant Park 165 goes green shortly after 2 p.m. ET with coverage on TNT, MRN and SiriusXM NASCAR Radio.