The anticipated elapsed times for each vehicle are compared, with the slower car receiving a headstart equal to the difference of the two. With this system, virtually any two vehicles can be paired in a competitive drag race. If both vehicles cover the quarter-mile in exactly the predetermined elapsed time, the win will go to the driver who reacts quickest to the starting signal. Both lanes are timed independently of one another, and the clock does not start until the vehicle actually moves. Because of this, a vehicle may sometimes appear to have a mathematical advantage in comparative elapsed times but actually lose the race.
Drivers use amber lights as a guide to anticipate the green bulb coming on.
In the case of both vehicles making their runs under their dial-ins, the win goes to the driver who breaks out the least. When dual infactions occur, say a red light and then a break out, the red light takes precedent over the break-out. This site has been created and is maintained by NHRA . All logos and images are reserved. Click here for the latest browser requirements and links to FREE downloads.