About Us

ULTRA4 Racing is the official web site of Hammerking Productions. The founders of Hammerking are the force behind the toughest one-day off-road race on the planet: King of The Hammers.  

King of The Hammers takes place each year in February, on public lands in Johnson Valley, CA.  The race has evolved from 12 teams racing for bragging rights and a case of beer, to more than 300 teams competing before more than 35,000 fans in person and nearly 500,000 watching online. Due to the incredible success of King of the Hammers, and 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. ULTRA4 Racing currently has 8 races throughout the United States and ULTRA4 Europe currently has 4 races throughout Europe and plans to expand in the future. 

If you have any questions regarding ULTRA4  Europe, please contact info@ultra4europe.com