2025 COMPETITION BULLETINS

IMSA WEATHERTECH CHAMPIONSHIP

Comp Bulletin IWSC #25-01: 11/11/24 2024 IMSA WeatherTech Championship Sporting Regulations Publication

Comp Bulletin IWSC #25-02: 12/11/24 IMSA WeatherTech Championship Sporting Regulations Updates 

Comp Bulletin IWSC #25-03: 01/08/25 ROAR and Rolex 24 Event Driver Helmet and FHR Inspections 

Comp Bulletin IWSC #25-04: 01/15/25 IMSA WeatherTech Championship Sporting Regulations Updates

Comp Bulletin IWSC #25-05: 01/17/25 DIS Yellow Garage Fire Lanes

Comp Bulletin IWSC #25-06: 1/19/25 ROAR Before the 24 Session #7 Bronze Driver Participation

Comp Bulletin IWSC #25-07: 1/21/25 Rolex 24H Full Field Photo Process

Comp Bulletin IWSC #25-08: 1/22/25 GTP Rolex 24 At Daytona Tire Usage Notes

Comp Bulletin IWSC #25-09: 1/23/25 Rolex 24 At Daytona GTP Technical Inspection

Comp Bulletin IWSC #25-10: 2/27/25 IMSA WeatherTech Championship Sporting Regulations Updates 

Comp Bulletin IWSC #25-11: 4/2/25 IMSA WeatherTech Championship Sporting Regulations Updates 

Comp Bulletin IWSC #25-12: 4/30/25 IMSA WeatherTech Championship Sporting Regulations Updates

 

IMSA MICHELIN PILOT CHALLENGE

Comp Bulletin IMPC #25-01: 11/13/24 2025 IMSA Michelin Pilot Challenge Sporting Regulations Publication 

Comp Bulletin IMPC #25-02: 12/11/24 IMSA Michelin Challenge Sporting Regulations Updates 

Comp Bulletin IMPC #25-03: 01/08/25 ROAR and Rolex 24 Event Driver Helmet and FHR Inspections 

Comp Bulletin IMPC #25-04: 01/15/25 IMSA Michelin Challenge Sporting Regulations Updates

Comp Bulletin IMPC #25-05: 02/27/25 IMSA Michelin Challenge Sporting Regulations Updates

Comp Bulletin IMPC #25-06: 4/30/25 IMSA Michelin Challenge Sporting Regulations Updates 

IMSA VP RACING SPORTSCAR CHALLENGE

Comp Bulletin VPRC #25-01: 11/13/24 2025 IMSA VP Racing SportsCar Challenge Sporting Regulations Publication 

Comp Bulletin VPRC #25-02: 12/11/24 IMSA VP Racing SportsCar Challenge Sporting Regulations Updates

Comp Bulletin VPRC #25-03: 1/15/25 IMSA VP Racing SportsCar Challenge Sporting Regulations Updates

Comp Bulletin VPRC #25-04: 2/19/25 IMSA VP Racing SportsCar Challenge Sporting Regulations Updates 

 

PORSCHE CARRERA CUP

Comp Bulletin PCCNA #25-01: 2/13/25 2025 Porsche Carrera Cup North America Sporting Regulations Publication 

LAMBORGHINI SUPER TROFEO

Comp Bulletin LST #25-01: 04/23/25 Lamborghini Super Trofeo Sporting Regulations Updates 

MAZDA MX-5 Cup

Comp Bulletin MX5 #25-01: 1/15/25 2025 Whelen Mazda MX-5 Cup Presented By Michelin Sporting Regulations Publication 

Comp Bulletin MX5 #25-02: 2/28/25 Mazda MX-5 Cup Presented By Michelin St. Pete Maximum Lap Times

Comp Bulletin MX5 #25-03: 2/28/25 Mazda MX-5 Cup Presented By Michelin St. Pete T&S Loop Location

Comp Bulletin MX5 #25-04: 5/2/25 Mazda MX-5 Cup Presented By Michelin Barber Maximum Lap Times 

MUSTANG CHALLENGE

Comp Bulletin MC #25-01: 1/15/25 2025 Mustang Challenge Sporting Regulations Publication  

Comp Bulletin MC #25-02: 2/27/25 Mustang Challenge Sporting Regulations Updates

 




2024 Competition Bulletins

 

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