SuperNats XXVIII

12DAYS

2026 Winter Series

70DAYS

2026 Pro Tour

148DAYS

SKUSA Mexico

120DAYS

2026 PKC

120DAYS

2025 TSRS

133DAYS

SuperNationals 28


PRE-ENTRY CLOSED!!!
Will provide update on classes that will be open for walk-ups shortly.

 

Supernationals 28 November 12-16, 2025
Las Vegas Motor Speedway
7000 Las Vegas Blvd N
Las Vegas, NV 89115
Google Maps

PACKAGES & SHIPMENTS

Event Bulletin

  • 10/29 11:30 - OPEN CLASSES UPDATE - There are still a few spots left in Pro Shifter, Pro X30 and Master Shifter, although they could be closed by the time we open for walk-ups.  KA100 Junior and X30 Junior have sufficient room for walk-ups.  If you are interested in any of these spots, please email tony@superkartsusa.com.
  • 10/29 11:00 AM - TEMP NUMBER ASSIGMENTS - Some of you had to pick temporary, out of range numbers during registration. We have now assigned you a new in range number here.

Supernationals

2025 SuperNats XXVIII Classes

Class Structure

Our event schedule promises to deliver the usual abundant track time – including opportunity for drivers to run multiple classes – with breaks in between. The classes are detailed below. Drivers who enter "Pro" classes are also allowed to enter "Semi-Pro" classes and vise versa. 

Capped Entries

As in years past, the class capacity for all classes will start at 44.  Once a class is sold out, additional drivers will be placed on a waitlist. The first few classes to warrant expansion will open to 88.  THE ONLY WAY TO GUARANTEE YOUR ENTRY IS TO BE IN THE FIRST 44.  We are taking this approach to accommodate shifting demand in some classes and so that we can host as many competitors as possible.

SKUSA reserves the right to adjust the entry cap per class at any time, based on entry counts and class demand. The format of limiting entries and classes provides 5 days of virtually non-stop racing action. To quote Steve McQueen, "Racing is life. Anything that happens before or after is just waiting." To ensure your spot in this year’s event, enter early or you may miss out.

Event Schedule

An event schedule will be released at later date, but it will be similar to years past.  The air cooled classes will run primarily in the morning, and the water cooled classes in the afternoon.

Need Proof of Driver Age

All Drivers must assure that their date of birth has been verified by SKUSA with a Birth Certificate, current passport, government ID or driver's license at time of Online Registration. If it has not, email it to This e-mail address is being protected from spambots. You need JavaScript enabled to view it . Your entry will be placed on hold and not processed without it.

ALL CLASSES REQUIRE THE FOLLOWING

  • Push Back Bumpers
    • Pro and Master Shifter - NOT REQUIRED.
  • Sunoco Supreme 112 Spec Fuel and Elf HTX909 Spec Oil


SSE/KZ CLASSES

Pro Shifter
sponsored by PSL Karting
Engine: KZ 125cc
Age: 15+
Weight: 390 lbs
Tires: Evinco Red 'SK-M2' Spec from SKUSA
Kart # 1-99
Master Shifter
sponsored by Kart CRG USA
Engine: IAME SSE 175cc / KZ 125cc
Age: 30+
Weight: 405 lbs
Tires: Evinco Red 'SK-M2' Spec from SKUSA
Kart # 600-699
 

IAME SWIFT CLASSES

Micro Swift
sponsored by Velocity Racing by Sodi USA
Engine: IAME Mini Swift 60 + 16mm factory header
Age: 7-10
Weight: 220 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Additional Equipment: Neck brace & SFI-approved chestprotector required
Kart # 200-299
Mini Swift
sponsored by NABS Creative
Engine: IAME Mini Swift 60
Age: 9-13
Weight: 245 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 100-199
 

IAME KA100 Classes

KA100 Senior
sponsored by TKG BIRELART USA.com
Engine: IAME KA100
Age: 15+
Weight: 355 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Kart # 900-999
KA100 Master
sponsored by Orsolon Racing
Engine: IAME KA100
Age: 30+
21+ (200 lb racing weight of driver)
Weight: 390 lbs // 400 lbs (21+)
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Kart # 400-499
KA100 Junior
sponsored by Simcraft
Engine: IAME KA100 + 22mm factory header
Age: 12-15
Weight: 320 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 800-899
 

IAME X30 CLASSES

Pro X30
sponsored by Perico Energy Drink
Engine: IAME X30
Age: 15+
Weight: 360 lbs
Tires: Evinco Red 'SK-M2' Spec from SKUSA
Kart # 1-99
X30 Junior
sponsored by Speed Concepts Racing
Engine: IAME X30 + 22.7mm factory header
Age: 12-15
Weight: 320 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 700-799
 
Last Updated on Wednesday, 15 October 2025 15:56