NEWTON, Iowa (AP) — Iowa Speedway CEO Doug Fritz has resigned after two years on the job. The track says Fritz left to pursue another opportunity. Fritz attended Sunday’s NASCAR Camping World Trucks series race, and his resignation became official Monday.

Fritz, the former president of Richmond International Speedway, took over for Jerry Jauron after the 2011 season. Iowa Speedway president Stan Clement will add the chief executive’s duties to his job description.