Due to the incredible success of King of the Hammers, Hammerking has created an ULTRA4 Racing Series with seven races held throughout the country.
Each of these races is a qualifier for the King of The Hammers race each year. In addition to these races, Hammerking has established a racing class known as the ULTRA4 class. The defining characteristic of this class is that all cars must be capable of 4-wheel drive. Beyond that, the class is unlimited. These cars come in all shapes and sizes and are capable of speeds over 100+ MPH and still contain gear ratios as low as 100 to 1 for technical rock crawling.
To give these cars and their drivers a chance to showcase their unique capabilities, Hammerking has formed the ULTRA4 Racing series. The series challenges drivers to compete in a wide variety of terrain from endurance desert racing to competition-style rock crawls to short course racing. Hammerking currently produces seven races in the series.