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Number Requests

Welcome to Ultra4 Racing & the King of the Hammers!  To request a vehicle number, please email numbers@ultra4racing.com or click the link below.  Please refer to the below section taken from the rule book about vehicle identification when placing your number on your vehicle.

2023 Hammerking Rulebook V5.3 Final 17

  • 2.3 VEHICLE IDENTIFICATION

    • 2.3.1 All vehicles in competition must be identified with the correct entrant number.

    • 2.3.2 Entrant numbers shall be composed of a combination of the digits 0 through 9 only.

    • 2.3.3 Entrant numbers shall be assigned annually to Drivers of Record on a first-come first served basis. In the event of a conflict,  seniority based on the date on which the Driver of Record first competed in an Hammerking Productions Inc. event will determine the outcome, with OG13 having first right, 2008 KOH second right, and so on.

    • 2.3.4 Vehicles must display entrant numbers on front, both sides, and back of vehicle. Any number location that is deemed by Hammerking Productions Inc. to be too hard to read will have to be changed before the vehicle is allowed to compete in the event.

    • 2.3.5 Entrants are advised that checkpoint staff at each checkpoint will not allow vehicles to continue after stopping, until numbers can be verified.

    • 2.3.6 Hammerking Productions Inc. reserves the right to require race vehicle numbers and/or background colors be changed.

    • 2.3.7 Hammerking Productions Inc. assumes no responsibility for scoring vehicles with unrecognizable numbers. It is the vehicle driver’s responsibility to maintain numbers in recognizable condition.

    • 2.3.8 All 4 Wheel Vehicles must utilize a ‘Shark fin’ style number plate located behind the B Pillar and offset in from the side panels of the vehicle to protect from mud. In addition to the Shark Fin, all vehicles must have one (1) front facing and one (1) rear facing number plate with the same color combination as the Shark Fin.

    • 2.3.9 Shark Fin numbers must be 7” (175mm) tall with 1” (25mm) brush stroke in Arial Narrow font only. Front facing and rear facing numbers must be 6" (150mm) tall.

  1.  4400 Class – Black numbers with white background

  2. 4500 Class – Black numbers Pantone Matching System (PMS) 151 C – light orange background

  3. 4600 Class – Black numbers PMS 2707 C – Light blue background

  4. 4800 Class – Black numbers PMS 101 C – Yellow background

  5. 4900 Class – White numbers – Black background

  6. The National or European Class Champion may use white numbers on a PMS 485 Red background

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