IMSA WeatherTech Sportscar championship

Comp Bulletin IWSC #23-01: 10/14/22 2023 IMSA WeatherTech Championship Sporting Regulations Publication

Comp Bulletin IWSC #23-02: 10/19/22 IMSA WeatherTech Championship Sporting Regulations Updates

Comp Bulletin IWSC #23-03: 11/02/22 IMSA WeatherTech Championship Sporting Regulations Updates

Comp Bulletin IWSC #23-04: 12/21/22 IMSA WeatherTech Championship Sporting Regulations Updates

Comp Bulletin IWSC #23-05: 01/06/23 ROAR and Rolex 24 Event Driver Helmet Inspections 

Comp Bulletin IWSC #23-06: 01/11/23 IMSA WeatherTech Championship Sporting Regulations Updates 

Comp Bulletin IWSC #23-07: 01/17/23 Additional Trailers Logistics Plan 

Comp Bulletin IWSC #23-08: 01/18/23 GTP Hybrid Electrified Identification 

Comp Bulletin IWSC #23-09: 01/22/23 ROAR Before the 24 and Rolex 24 At Daytona Updates/Clarifications

Comp Bulletin IWSC #23-10: 01/25/23 GTP Rolex 24 At Daytona SLT Tire Usage Notes

Comp Bulletin IWSC #23-11: 01/28/23 Refueling And/Or Energy Replenishment

Comp Bulletin IWSC #23-12: 02/02/23 IMSA WeatherTech Championship Sporting Regulations Updates

Comp Bulletin IWSC #23-13: 03/02/23 Indianapolis IMSA Sanctioned Test Information

Comp Bulletin IWSC #23-14: 03/13/23 IMSA WeatherTech Championship Sporting Regulations Updates

Comp Bulletin IWSC #23-15: 03/15/23 IMSA WeatherTech Championship Sporting Regulations Updates

 

 



IMSA MICHELIN PILOT CHALLENGE
Comp Bulletin IMPC #23-01: 10/14/22 2023 IMSA Michelin Challenge Regulations Publication  

Comp Bulletin IMPC #23-02: 12/21/22 2023 IMSA Michelin Challenge Sporting Regulations Updates

Comp Bulletin IMPC #23-03: 01/06/23 ROAR and Rolex 24 Event Driver Helmet Inspections

Comp Bulletin IMPC #23-04: 01/11/23 IMSA Michelin Challenge Sporting Regulations Updates 

Comp Bulletin IMPC #23-05: 01/17/23 Additional Trailers Logistics Plan 

Comp Bulletin IMPC #23-06: 03/02/23 Indianapolis IMSA Sanctioned Test Information