25–26 Mar | ![]() |
Willow Springs International Raceway![]() High Desert Challenge |
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28–30 Apr | ![]() |
Auto Club Speedway![]() Southern California Historic Sports Car Festival |
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1–4 Jun | ![]() |
Sonoma Raceway![]() Sonoma Historic Motorsports Festival |
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27–30 Jul | ![]() |
Portland International Raceway![]() Portland Vintage Racing Festival |
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