Bell wins at Iowa for 4th victory of 2019
Christopher Bell races his car during a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Christopher Bell races his car during a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Jun. 16, 2019 07:35 PM EDT
Crew members change tires on Christopher Bell's car during a pit stop in a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Crew members change tires on Christopher Bell's car during a pit stop in a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Jun. 16, 2019 07:37 PM EDT
Christopher Bell crosses the finish line to win a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Christopher Bell crosses the finish line to win a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Jun. 16, 2019 08:29 PM EDT
Christopher Bell does a burnout after winning a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Christopher Bell does a burnout after winning a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Jun. 16, 2019 08:30 PM EDT
Christopher Bell celebrates after winning a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Christopher Bell celebrates after winning a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Jun. 16, 2019 08:33 PM EDT
Cole Custer, left, leads Christopher Bell during a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Cole Custer, left, leads Christopher Bell during a NASCAR Xfinity Series auto race, Sunday, June 16, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Jun. 16, 2019 07:36 PM EDT