Bristol Motor Speedway, originally known as Bristol International Raceway and Bristol Raceway is a NASCAR short track located in Bristol, Tennessee. It was constructed in 1960, and held its first NASCAR race on July 30, 1961.
One of the most popular tracks in NASCAR, this all-concrete construction is similar to Dover, except far shorter. Although the track still advertises the banking as 36 degrees, which would make it the most steeply banked track used by NASCAR, it is now accepted that the actual banking ranges from 24 to 30 degrees after the track's most recent resurfacing in 2007 (even before the resurfacing, there was some dispute as to the accuracy of the measurement). However, the track is so short that speeds here are far lower than is typical on most NASCAR oval tracks, but very fast compared to other short tracks due to the high banking, making for a considerable amount of "swapping paint". Also, the initial starting grid of 43 vehicles extends almost halfway around the track, meaning that the slower-qualifying cars begin the race almost half a lap down. Another anomaly is that the short overall length means that there are two sets of pits. Until 2002, slower starters were relegated to those on the backstretch. In 2002, the rules were changed to form essentially one long pit road. During caution periods, cars wishing to pit must enter pit road in turn two, drive all the way down the back stretch, through turns three and four and down the front stretch, exiting pit road in turn one. This rule eliminated the inherent disadvantage of pitting on the back stretch. Pit stops under green flag conditions have different rules. Cars with pits on the back stretch enter the pits in turn two and exit in turn three; Cars with pits on the front stretch enter the pits in turn four and exit in turn one. Since the new pit rules were instituted, several drivers have made major mistakes during green flag pit stops by driving through both pit roads when only one is necessary for green flag pit stops.[when?]
The congestion inherent in this facility and the power of the cars has been likened to "flying fighter jets in a gymnasium" (the terms "washing machine" and "toilet" have also been used). The track is one that tends to be either loved or hated by fans and drivers alike--purists who grew up driving or attending races at older short tracks located at fairgrounds and similar places tend to love Bristol while those raised on superspeedway racing tend to chafe at the lower speeds. Often, Bristol races are the scene of the highest number of yellow-flag caution laps in the NASCAR season; with so many cars in such a small space, contact is almost inevitable. Until the Beneficiary Rule was instituted in 2004 (the rule was instituted after the races at Bristol in 2003), the short lap length and the unpredictable nature of the racing meant that this was one of the few remaining NASCAR tracks at which it was feasible for a driver to come back to win a race from several laps down; at most modern tracks, especially superspeedways, that was almost impossible. The short lap length also cuts the other way; any unscheduled pit stop for reasons such as a cut tire will result in the driver going two or more laps down as it is almost impossible to get anything done to a car during the time taken to complete one circuit, especially under green-flag conditions (approximately 15 seconds). Thus, the disadvantage of losing laps means the chances of earning a free pass under the Beneficiary Rule is harder, since a driver losing two laps under a green-flag pit stop would have to race his way past the leader before the caution waved to regain one of his laps back, unless there are no cars one lap behind.