Heat C works when Heat A runs. Heat A works when Heat C runs. Heat D works when Heat B runs. Heat B works when Heat D runs. The bumping rule is in effect only for the Team Challenge.
Drivers are responsible for changing numbers on their cars.
If competing in the same heat, a minimum of 10 cars or 5 minutes must separate the drivers. Everyone must work a Heat for every Heat they run. Failure to work will result in disqualification. Sign up for work assignments at last stop of registration. Report to worker check in before the heat begins.