Richard Childress Racing once again dominated Friday’s second Xfinity Series practice at Chicagoland Speedway.
And just like the first session earlier in the afternoon, a Dillon brother was at the top of the speed charts. While Ty Dillon was fastest in the first practice, older brother Austin was fastest in the second session with a speed of 177.340 mph.
RCR had four drivers in the top 9 in the first practice and the same number of drivers in the top 10 in the second practice.
Ty Dillon was fifth-fastest (174.317 mph), Brendan Gaughan was eighth (183.773) and Brian Scott was 10th (173.712).
Other notable performances included JJ Yeley at second-fastest (176.546 mph), Ryan Blaney right behind (175.245) and Drew Herring (175.245).
Herring was shaking down the car for Erik Jones, who raced Friday in the Camping World Truck Series event at Iowa, but will be at Chicagoland Speedway to race Saturday night.
Qualifying will take place Saturday at 5:15 pm ET, with the main event, the Owens Corning Atticat 300, which takes the green flag at 9:30 pm ET (Fox Sports 1).