Congratulations on deciding to be a competitor during King of the Hammers! The registration process will be the same for all Ultra4, Desert, Shootout and Moto classes, and is only available through King of the Hammers.

More details can be found in our Competitor FAQs.

  1. Please be sure to use a consistent Driver of Record throughout all forms and licenses for your team. We will be tying records back to the Driver of Record throughout the process.
  2. If you need a number, please complete a Car Number Request Form.
  3. When you have a number (new or previous), please update or create your Competitor Profile.
  4. Purchase Your USAC Competition License. Everyone in the car or in a remote or hot pit must have a license; there are multiple licensing options to choose from. Write down your license number because you will need this to complete registration.
  5. You’re ready to register by clicking Driver Registration Link! When you register, you will need:
    • A current USAC or AMA License Number
    • Your class and subclass (if applicable). Example: For the 4900 class, you must choose Stock NA, Stock Turbo, Mod or Open. Class breakdowns are listed within the Driver Registration form.
    • Medical Insurance provider information
    • Car details (oem brand, motor, tires, wheels, shocks)
  6. Upload your W-9. We need a new form every year for payment processing, including the Competitor Payback Program and any winnings.

Competitor Payback Program
King of the Hammers believes we should help make racing more affordable for competitors, so we’ve found a way to put dollars back into your race program through the Competitor Payback Program!  When you register to race King of the Hammers, participants (formerly called spectators), will be able to select your name from a menu and you'll receive $10 of each ticket sold, paid by check to you monthly! It may take up to 24 hours for your name to populate and show available after registering. You do not need to do anything special to be enrolled, it's automatic. This is a great time to market yourself and your team while collecting a check for it! 


Team T-Shirt Program
We’re excited to utilize the relationships we have built as a company to help competitors offer merchandise and brand your race team, while helping put money back into your race program. In-line with our Competitor Payback Program, KOH believes racing should be more affordable for our competitors so we’re taking steps to make that happen! We will produce and sell your custom shirt on our online store and you’ll receive $15 back per shirt. You may take advantage of this opportunity in registration, there is no cost to enroll, only your set-up fee (and art if applicable). 

  • The shirt will have a special edition, driver's shirt only, 2023 KOH logo on the front and your custom art on the back.
  • We are not able to accept shirts you already have produced to sell.
  • For each shirt sold, you will receive $15. A total check will be mailed by December 31, 2022.
  • Shirt sales end December 11, 2022 and are available only after you register. The sooner you register, the faster we can get it on the site for sale.  
  • Shirt color choices are black or grey and art may be up-to four colors on the back.
  • All shirts will ship to the individual purchasers just in time for Christmas.

Garages will be available in the Hammertown Portal at a later date. We are currently reviewing availability and will notify competitors when it’s available along with instructions and a link.

Race Fuel will be available on the lakebed, as well as pump gas. There will be a preorder for race fuel that will be emailed out closer to the race.

Rulebook, for current Ultra4 Racing rulebook, addendums, and updated UTV classes and tech bulletins, visit: Rulebook

Tech, to find remote tech locations, book your tech appointment on the Lakebed, view updated UTV classes and tech bulletins, visit: Tech Inspection

WIFI will be available for purchase on a first-come, first-served basis through reservations only. Due to the high demand, there are no WIFI sales on the lakebed. We will notify competitors through email when it is available.

Registration consists of: USAC competitors license, waiver and registration. Every person in a race vehicle or hot pit (remote pits one and two) need a USAC license. One registration per race car, the co-driver does not need to register.