SuperNats XXVII


2025 Winter Series


2024 Pro Tour


SKUSA Mexico


2024 PKC


2024 TSRS


Superkarts! USA - Rulebook & Updates

Race Numbers and Panels
Starting with 2018, SKUSA is mandating the use of "CIK Style" numbers for all events we directly promote. This includes the Winter Series, Pro Tour, ProKart Challenge and SuperNationals. The reasons for this vary, but mostly because of the difficultly in reading your numbers on track and in video. This was caused equally by our color combinations and the 'freelance' nature of some of your custom number panels.

The rules below describe the new standard for number panels. Emphasis in bold. Panel Colors: Effective 01/01/18, Numbers shall be black on a yellow background, at least 15 cm (5.9”) tall and have a 2 cm (.787”) wide stroke represented with an Arial font. No shaded or outlined numbers are allowed. The competition number shall be bordered by a yellow background of 1 cm (.393”) minimum. They must be in place prior to any official session, on both front and rear panels, as well as on both sides towards the rear of the bodywork. The driver is responsible for ensuring that the required numbers are clearly visible at all times to timekeepers and officials.

A popular example for individual numbers are shown above.  If your kart's factory decals provide yellow panels, then basic die-cut vinyl numbers are very cost effective.

Number Ranges Per Class

The number ranges assigned to each class are listed below.  Single digit numbers are still reserved for class champions.  

IAME Classes Shifter Classes
Micro Swift - 10-99
Mini Swift - 100-199
X30 Junior - 700-799
X30 Senior - 300-499 (400-499 reserved for overflow)
X30 Master - 500-599
X30 Super Master - 600-699 (PKC Local Option)
KA100 Junior - 800-899
KA100 Senior - 900-999
KA100 Master - 200-299
Pro (SSE) - 100-199
Pro2 (SSE) - 200-299
G1 (SSE) - 700-799
G2 (SSE) - 400-499
S1 - 100-199
S2 - 200-299
S3 - 300-399
S4 - 400-499
S5 - 500-599
S4SM - 600-699
KZ - 4-99 (SuperNats/Local Option)

National and Regional Class Champions

In the year they are earned, the top three points finishers in each Pro Tour class will be awarded and allowed to run their single digit National numbers starting with their first on-track session in Vegas for the SuperNationals. After they run these numbers at the SuperNats, they will be required to run them the entire following year in the Pro Tour, and optionally at any SKUSA regional races they participate in.   These will still be yellow numbers on a black background. 

Regional class champions (1st, 2nd, and 3rd) have the option of running their earned numbers only in the series in which they are won.  They will be black numbers on a yellow background.  We will no longer offer the regional champ 'moving up' number plates.

What about my reserved number? 

In moving to the new system described above we've now come to a crossroads with regard to reserved numbers. We simply don't have enough numbers in each pool to reserve a number for every driver across all series. We are now no longer reserving or maintaining numbers with your membership but we understand the desire and will evaluate options for the 2020 season based on our experiences this season and customer feedback.

Reserved Race Numbers are Back for 2020!

By popular demand, we are now reserving numbers for the entire 2020 season across all SKUSA promoted events, including the SuperNats.  We are only offering this for a limited time; for all new and renewal memberships submitted in November of 2019.  There is a nominal fee of $10 per class.  If you don't wish to reserve your number this way, you may continue to do so with our normal procedure listed below. In both scenarios, numbers are reserved on a first come first served basis.

How do I choose my number?

When you sign up for your first race in any of our series, you will choose your number from available numbers in that class's pool. That will then be your reserved number for the rest of the year, in that series. Since you are picking a number for each series, it's possible you will end up with different numbers in different series. Numbers are always 'first come, first served' and we will not honor requests to 'hold' a number for you. As the SuperNationals is considered a STAND-ALONE race, all race numbers will revert back to the FIRST COME, FIRST SERVED policy with no priority to competitors having run in the ProKart Challenge, Pro Tour, or Winter Series.

Individual Numbers vs Custom Number Panels

Because of the possibility of you having a different number for PKC and the Pro Tour, for example, we don't recommend you purchase pre-printed number panels prior to race number confirmation from SKUSA. We also highly suggest using individual number decals that many of your favorite decal printers are now making. There will likely be 1 or more vendors selling them on site at all races, although we recommend sourcing them from your favorite shop or printer ahead of each event.