All matchups will be settled as per the official NASCAR result. If one driver fails to complete the race, then the other driver will be declared the winner. Where both drivers fail to complete the race, then the number of full laps completed will determine the result. If both drivers fail to complete on the same lap, then the official placing as assigned by the controlling authority will determine the result.
Both drivers must start the race (e.g., cross the start line) for bets to be action. If any driver is replaced before the start of the race, then all matchups will be deemed no action. For example, driver Gordon qualifies in 1st place but due to injury is replaced by driver Brack (all bets are deemed no action).
If a driver is replaced during the race, then bets will stand on his replacement. For example, Driver Gordon starts the race but due to injury is replaced after 10 laps by replacement Driver Brack who then finishes the race and places 4th. In the race standings and for betting purposes Driver Gordon would be credited with a 4th place finish.