2010 Air Guard 400
Background
### Background

[thumb\|left\|[Richmond International Raceway](/wiki/Richmond_International_Raceway "Richmond International Raceway"), the race track where the race was held.](/wiki/File:Kyle_Busch_started_first%2C_ran_first_most_of_the_night%2C_and_finished_first_at_RIR.jpg "Kyle Busch started first, ran first most of the night, and finished first at RIR.jpg")
[Richmond International Raceway](/wiki/Richmond_International_Raceway "Richmond International Raceway") is one of five [short tracks](/wiki/Short_track_motor_racing "Short track motor racing") to hold NASCAR races; the others are [Bristol Motor Speedway](/wiki/Bristol_Motor_Speedway "Bristol Motor Speedway"), [Dover International Speedway](/wiki/Dover_International_Speedway "Dover International Speedway"), [Martinsville Speedway](/wiki/Martinsville_Speedway "Martinsville Speedway"), and [Phoenix International Raceway](/wiki/Phoenix_International_Raceway "Phoenix International Raceway"). The NASCAR race makes use of the track's standard configuration, a four\-turn short track [oval](/wiki/Oval_track_racing "Oval track racing") that is  long. The track's turns are [banked](/wiki/Banked_turn "Banked turn") at fourteen degrees; the front stretch, the location of the finish line, is banked at eight degrees while the [back stretch](/wiki/Straight_%28racing%29 "Straight (racing)") has two degrees of banking.

Before the race, [Kevin Harvick](/wiki/Kevin_Harvick "Kevin Harvick") led the [Drivers' Championship](/wiki/List_of_NASCAR_Sprint_Cup_Series_champions "List of NASCAR Sprint Cup Series champions") with 3,585 points, and [Jeff Gordon](/wiki/Jeff_Gordon "Jeff Gordon") followed in second with 3,366 points. [Kyle Busch](/wiki/Kyle_Busch "Kyle Busch") was third in the Drivers' Championship with 3,325 points, [Tony Stewart](/wiki/Tony_Stewart "Tony Stewart") was fourth with 3,302 points, and [Carl Edwards](/wiki/Carl_Edwards "Carl Edwards") was fifth with 3,288 points. Five additional drivers had clinched spots in the Chase—in order of placement, [Jeff Burton](/wiki/Jeff_Burton "Jeff Burton"), [Jimmie Johnson](/wiki/Jimmie_Johnson "Jimmie Johnson"), [Kurt Busch](/wiki/Kurt_Busch "Kurt Busch"), [Matt Kenseth](/wiki/Matt_Kenseth "Matt Kenseth"), and [Denny Hamlin](/wiki/Denny_Hamlin "Denny Hamlin"). [Greg Biffle](/wiki/Greg_Biffle "Greg Biffle"), who was 11th in the standings with 3,110 points, needed only a finish of 42nd place in the race to secure his spot in the Chase. [Clint Bowyer](/wiki/Clint_Bowyer "Clint Bowyer"), in the final Chase spot of 12th in the standings with 3,066 points, clinched his spot with a race finish of 28th or better. In the [Manufacturers' Championship](/wiki/NASCAR_Manufacturers%27_Championship "NASCAR Manufacturers' Championship"), [Chevrolet](/wiki/Chevrolet "Chevrolet") was leading with 182 points, thirty\-two points ahead of their rival [Toyota](/wiki/Toyota "Toyota"). [Ford](/wiki/Ford_Motor_Company "Ford Motor Company"), with 116 points, was fourteen points ahead of [Dodge](/wiki/Dodge "Dodge") in the battle for third. Hamlin was the race's defending champion.

This race was sponsored by the [Air National Guard](/wiki/Air_National_Guard "Air National Guard"). Going into the race, Col. Mary Salcido, director of recruiting and retention for the Air National Guard, expressed his belief that the sponsorship would allow the organization to achieve its recruitment goals; saying that "with NASCAR having one of the largest fan bases next to the [NFL](/wiki/National_Football_League "National Football League"), the marketing and number of people that an event like this reaches are in the millions."


What are the names of the other four short tracks that hold NASCAR races?