Yes, for all practical purposes, when the checkered drops, everyone races back to the line for finish positions.
I believe it was Richard Petty. He came from 7 laps. I am not sure what race it was. But I believe it was in the 50's or the 60's.
500 laps by Cale Yarborough at Bristol
334 laps/500 miles
Kyle Busch led 2,229 laps in the 2010 Nascar Nationwide Series.
In the 1959 Daytona 500 with the help of newsreel footage and photographs, Lee Petty was declared the winner by two feet.
In 2011, Joey Logano led 58 laps in the Nascar Sprint Cup Series.
Jimmie Johnson (95 laps lead)
The Nascar All-Star race consists of 100 laps.50 lap segment with a mandatory 4-tire green flag pit stop at lap 25Two 20 lap segments10 minute break10 lap shootout to determine the winner
In 2012, Kasey Kahne led 282 laps in the Nascar Cup Series, 106 laps in the Nationwide Series and 46 laps in the Truck Series..
In 2008, Jimmie Johnson led 1,959 laps.
To be an official Nascar race, the drivers must complete 100 of 200 laps. Once lap 101 begins, it's an official race.
Unless there is a green-white-checkered finish, the Nascar Sprint Cup Series race at Las Vegas Motor Speedway is scheduled for 267 laps (400.5 miles). The Nationwide Series race is 200 laps (300 miles) and the Camping World Truck Series race is 146 laps (219 miles).