Dallara IR18
| Week | Date | Track | Cars |
|---|---|---|---|
| 1 | Jun 16 | Road America - Full Course | Dallara IR18 |
| 2 | Jun 23 | EchoPark Speedway (Atlanta) - Oval - 2008 | Dallara IR18 |
| 3 | Jun 30 | Mid-Ohio Sports Car Course - Full Course | Dallara IR18 |
| 4 | Jul 7 | Auto Club Speedway - Oval | Dallara IR18 |
| 5 | Jul 14 | Nashville Superspeedway | Dallara IR18 |
| 6 | Jul 21 | Virginia International Raceway - Full Course | Dallara IR18 |
| 7 | Jul 28 | Pocono Raceway | Dallara IR18 |
| 8 | Aug 4 | Portland International Raceway - Full Circuit | Dallara IR18 |
| 9 | Aug 11 | Circuit Gilles Villeneuve | Dallara IR18 |
| 10 | Aug 18 | Chicago Street Course - 2023 Cup | Dallara IR18 |
| 11 | Aug 25 | The Milwaukee Mile | Dallara IR18 |
| 12 | Sep 1 | WeatherTech Raceway at Laguna Seca - 2026 | Dallara IR18 |