TALLADEGA, Ala. — The No. 1 JR Motorsports Chevrolet driven by Sam Mayer was disqualified Saturday evening in post-race inspection after the NASCAR Xfinity Series event at Talladega Superspeedway.
Mayer’s No. 1 Chevy failed the post-race height requirement, measuring too low in the rear following the conclusion of the United Rentals 250. Mayer, who started the race in 12th, took the checkered flag in 16th before the violation.
RESULTS: Official race results
Mayer, one of 12 Xfinity Series Playoffs drivers fighting for Round of 8 positioning, was fourth in the playoff standings entering Talladega.
One lug nut was additionally found unsecured on Chandler Smith’s No. 81 Joe Gibbs Racing Toyota, which will result in a monetary fine.
The Xfinity Series will conclude the Round of 12 at the Charlotte Motor Speedway road course next Saturday (4 p.m. ET, The CW, PRN Radio, SiriusXM NASCAR Radio).