WEST UNION, Iowa – The Arnold Motor Supply Iron Man Challenge invaded Fayette County Speedway on Sunday, with Mitch Hovden and Kris Jackson kicking off September the same way they ended the month of August.

The two drivers are the defending Summit USRA Weekly Racing Series national champions and are leading the current national points in their respective divisions. Both were winners in Saturday night’s show at Deer Creek Speedway in Spring Valley, Minn., as well.

Hovden continued his march toward an unprecedented sixth American Racer USRA Stock Cars world title with a spectacular victory from the eighth starting spot Sunday night at the semi-banked, three-eighths-mile clay oval.

Fellow Decorah, Iowa driver Kyle Falck settled for the runner-up paycheck, while Lynn Panos finished third. Thirteenth-starting Brayden Gjere clawed his way to fourth at the finish and 2017 Iron Man champion Derek Green rounded out the top five.

In Out-Pace USRA B-Mod action, Kris Jackson drew the pole for the start of the 20-lap main event and that was as close as anybody got to taking the top spot away from him.

The Lebanon, Mo., racer collected $500 for his efforts, while Dan Hovden – who sits second in the division’s national points race – took second place after rolling off seventh on the starting grid.

Ben Moudry was third, Josh Roney finished fourth and Iron Man points leader Jared Boumeester completed the first five to the checkered flag.