Dennie Gieber
Car No.: 15D
Chassis: GRT Race Cars
Engine: AMS Racing Engines
Car No.: 15D
Chassis: GRT Race Cars
Engine: AMS Racing Engines
Latest Headlines
Callies Performance Products Returns to Honor USMTS Engine Builders
The United States Modified Touring Series is proud to announce that Callies Performance Products has renewed its commitment as one of the Engine Builders of the Year sponsors for the 20…
Texas Grit Kicks Off the Toughest Season in Dirt Modified Racing
Everything’s bigger in Texas—and that includes the challenge. Next week, the green flag drops on the toughest, most competitive season in dirt modified racing as the Summit Racing Equipment USMTS…
FK Rod Ends Returns as USMTS Hard Charger Title Sponsor
FK Rod Ends continues to step up in a big way for the 2026 season by putting $100 CASH on the line after every A-Main to reward the hard charger of the race.…
VP Racing Fuels extends Official Fuel partnership with USMTS
The United States Modified Touring Series and VP Racing Fuels are proud to announce a multi-year extension that will keep VP Racing Fuels as the Official Fuel of the U…
Videos
Jerry Hejna Memorial set for Mason City
The USMTS road warriors return to the Pritchard Family Auto Stores Mason City Motor Speedway at the North Iowa Fair in Mason City, Iowa, on Sunday, May 25, for the Jerry Hejna Memorial presented by Rookies Rockin' Sports Bar. The Summit U
USMTS heads for Hobo 100k Nickel Nationals
USMTS Memorial Day Weekend May 22-25