About the event:

The 2026 AMSOIL Championship Off-Road National Tour rolls into the Dirt City Motorplex for Rounds 9 & 10, and if past years have taught us anything, it’s that Dirt City delivers absolute thrills on the track.

This bullring-style course is tight, technical, and unforgiving, setting the stage for door-to-door battles, dramatic passes, and high-stakes action that keeps fans on the edge of their seats. With limited room to breathe and minimal margin for error, only the boldest drivers will rise to the occasion.

Entry list is not final and is subject to change. List updated 7/22/26 at 12:00 AM CST.

PRO4

PRO2

PRO SPEC

PRO LITE

PRO BUGGY

PRO STOCK SXS

AMSOIL PRO SxS

About Dirt City Motorplex:

Dirt City Motorplex was born from a vision to bring world-class motorsports to Lena, Wisconsin. Breaking ground in the spring of 2018, the Lena Motorsports Club and countless volunteers worked tirelessly to create a premier motorsports venue in just one year. What emerged was more than a track; it’s a destination for adrenaline-fueled action, community connection, and unforgettable memories.

The .85-mile short course track is designed to challenge drivers and thrill fans with its mix of jumps, whoops, tight corners, and split lanes. One of the track’s most iconic features is the lowered suspense corner, where race vehicles climb into the front stretch and fly high through the Revolution Industrial Start/Finish Line, giving the crowd an up-close view of the action.

Every race ends with an electrifying celebration. The top three finishers park their vehicles before the fans and head to the podium for interviews. This moment isn’t just about trophies; it’s a chance for fans to meet their favorite drivers face-to-face and share the excitement of victory.

Dirt City’s track is more than a course—it’s where competition, connection, and community come to life.

About AMSOIL Championship Off-Road presented by Brunt

AMSOIL Championship Off-Road presented by Brunt is the premier short-course off-road racing series in North America. Showcasing the sport’s top drivers, teams, and race machines, this elite national championship brings high-octane, door-to-door racing to legendary venues spanning from Michigan to southern California. From PRO4 and PRO2 trucks to high-flying buggies, SxS, youth divisions and more, AMSOIL Championship Off-Road delivers non-stop action, fan-focused events, and a national platform for racers and partners. With live broadcasts and television coverage, a passionate fanbase, and support from industry-leading sponsors, AMSOIL Championship Off-Road continues to push the limits of off-road motorsports. Learn more at champoffroad.com and follow @ChampOffRoad on social media.

About ISOC
The International Series of Champions (ISOC), headquartered in Albertville, Minnesota, owns and operates both AMSOIL Championship Snocross and AMSOIL Championship Off-Road. ISOC is a recognized leader in professional motorsports, delivering premier national championship events that help define the future of winter and off-road racing. For schedules, tickets, and the latest updates, visit snocross.com or champoffroad.com.