Practice for all races starts at 7 pm EST.
Lotus 79
| Date | Track |
|---|---|
| 20-Dec | Phoenix [legacy] |
| 27-Dec | Long Beach |
| 3-Jan | Indianapolis |
| 10-Jan | Milwaukee |
| 17-Jan | Detroit |
| 24-Jan | Motegi oval |
| 31-Jan | Road America |
| 7-Feb | Mid Ohio |
| 14-Feb | No race (Valentines Day) |
| 21-Feb | Pocono [legacy] |
| 28-Feb | Watkins Glen |
| 7-Mar | Laguna Seca |
Lotus 49
| Date | Track |
|---|---|
| 22-Dec | Phoenix |
| 29-Dec | Long Beach |
| 5-Jan | Indianapolis |
| 12-Jan | Milwaukee |
| 19-Jan | Willow Springs |
| 26-Jan | Charlotte |
| 2-Feb | Road America |
| 9-Feb | Pocono |
| 16-Feb | Mid Ohio |
| 23-Feb | Mosport |
| 2-Mar | Michigan |
| 9-Mar | Watkins Glen |