SuperNats XXVIII

196DAYS

2026 Winter Series

TBA

2025 Pro Tour

23DAYS

SKUSA Mexico

16DAYS

2025 PKC

52DAYS

2025 TSRS

30DAYS

Next SKUSA Pro Tour Event


PRE-ENTRY OPEN NOW
Closes May 19 at 11:59 PM PDT

Master Shifter needs 10 entries by May 8th
to remain on the schedule.

springnationals - Rounds 3&4 May 23-25, 2025
Motorsports Country Club
of Cincinnati 

2848 US Route 50
Batavia, Ohio 45103
(513) 625-7223
mcckarting.com
Google Maps

EVENT BULLETIN

  • 4/28 3:45 PM - KA100 JUNIOR NOW SOLD OUT - If you are interested in this class, please register to join the waitlist.  With several weeks to go, there is a good chance for cancels.
  • 4/20 2:00 PM - CAPACITY UPDATE: With roughly 10 spots left as of this posting, looks like KA100 Jr will be the first class to sell out. KA100 Sr, X30 Jr and Mini are around half-full and expected to sell out as well.
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SKUSA Pro Tour

2025 Pro Tour Classes
The 2025 SKUSA Pro Tour will welcome some highly requested new changes to the racing format.  X30 Pro will return to two rounds of racing format and the Pro Shifter class will run Qualitying and two Heats on Saturday and a Pre-Final and Final on Sunday.  More details to follow.

Drivers racing in X30 Pro can also race in KA100 Senior and vice versa.  There are no longer any restrictions in place for 2025 but we will monitoring any effects closely.

PRo CLASSES

  • Push Back Bumpers - Not required for Pro Shifter
  • (2) Sets of Evinco Race Tires for each Event.
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
Pro X30
sponsored by Kart CRG USA
Engine: IAME X30
Age: 15+
Weight: 360 lbs
Tires: Evinco Red 'SK-M2' Spec from SKUSA
Kart # 1-99
 

SEMI-PRO CLASSES

  • Push Back Bumpers - Required for all classes except Master Shifter
  • Micro/Mini Swift - (1) Set of Evinco Race Tires Per 2-Round Weekend Allowed
  • All other Semi-Pro Clases - (2) Sets of Evinco Race Tires Per 2-Round Weekend Allowed
  • Master Shifter needs 10 entries by May 8th to remain on the schedule for MCC.
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 Speed Concepts Racing
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
 
X30 Junior
sponsored by Rolison Performance Group
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
KA100 Junior
sponsored by TKG BIRELART USA.com
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
 
KA100 Senior
sponsored by Nash Motorsportz
Engine: IAME KA100
Age: 15+
Weight: 355 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Kart # 900-999
Master Shifter
sponsored by Rocket Racing Company
Engine: IAME SSE 175cc / KZ 125cc
Age: 30+
Weight: 405 lbs
Tires: Evinco Red 'SK-M2' Spec from SKUSA
Kart # 600-699
 
 
We reserve the right to make additional modifications to our rules as experience dictates.
Last Updated on Wednesday, 16 April 2025 09:25