Roster
Select exactly five drivers: one each from Tiers 1 through 5. All five score every eligible race.
Tier creation
Tiers use prior-season final NASCAR points standings and only eligible full-time drivers. Drivers are split as evenly as practical across five tiers, with higher tiers receiving any extra slot when necessary.
Season lock and trade
The roster is season-long. Each entry receives one discretionary trade per season. The drop and add occur together and must preserve one driver per tier.
Injury or ride change
Tiered ownership follows the car/ride. If the original driver is injured, replaced, or permanently loses that ride, the roster slot remains attached to the car and the driver occupying that car becomes the scoring driver. This does not consume the annual trade.