| Express | Grid | Agenda | Details |
| IMSA [2021-11-11] - Road Atlanta | |
 0800 | |
Day 3 Group Qualifying - Prototype Challenge | N/A Group |
N/A Group | N/A Group |
| 0830 | |
Day 3 Group Qualifying - Mazda MX-5 Cup | N/A Group |
N/A Group | N/A Group |
| 0920 | |
Day 3 Group Practice 1 - WeatherTech Championship | N/A Group |
N/A Group | N/A Group |
| 1040 | |
Day 3 Group Practice 2 - Michelin Pilot Challenge | N/A Group |
N/A Group | N/A Group |
| 1210 | |
Day 3 Group Race 1 of 2 - Porsche Carrera Cup | N/A Group |
N/A Group | N/A Group |
| 1315 | |
Day 3 Group Race 1 of 2 - Mazda MX-5 Cup | N/A Group |
N/A Group | N/A Group |
| 1420 | |
Day 3 Group Practice 2 - WeatherTech Championship | N/A Group |
N/A Group | N/A Group |
| 1645 | |
Day 3 Group Race 2 of 2 - Porsche Carrera Cup | N/A Group |
N/A Group | N/A Group |
| 1830 | |
Day 3 Group Practice 3 - WeatherTech Championship | N/A Group |
N/A Group | N/A Group |
| 2010 | |
Day 3 Group Track Closed | N/A Group |
N/A Group | N/A Group |