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| 10–12 Jan ProvisionalThe event or date is not yet fully confirmed officially. | 
|
Sebring International Raceway | |
| 22–23 Feb ProvisionalThe event or date is not yet fully confirmed officially. |
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Buttonwillow Raceway Park | |
| 7–9 Mar ProvisionalThe event or date is not yet fully confirmed officially. |
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Michelin Raceway Road Atlanta | |
| 22–23 Mar ProvisionalThe event or date is not yet fully confirmed officially. |
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NOLA Motorsports Park | |
| 5–6 Apr ProvisionalThe event or date is not yet fully confirmed officially. |
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Virginia International Raceway | |
| 26–27 Apr ProvisionalThe event or date is not yet fully confirmed officially. |
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Hallett Motor Racing Circuit | |
| 10–11 May ProvisionalThe event or date is not yet fully confirmed officially. |
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Portland International Raceway | |
| 16–18 May ProvisionalThe event or date is not yet fully confirmed officially. |
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Mid-Ohio Sports Car Course | |
| 6–8 Jun ProvisionalThe event or date is not yet fully confirmed officially. |
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Road America WeatherTech Chicago Region June Sprints | |
| 27–29 Jun ProvisionalThe event or date is not yet fully confirmed officially. |
|
Watkins Glen International |
