The track surface has taken a beating because of the weather -- the frigid winters are followed by summers that grow deceptively scorching -- and some egregious paving mistakes to which construction companies have confessed. In 2002, the bottom of each turn was extended by 12 feet, essentially adding another racing lane, and repaved. But because some of the new asphalt broke up during the July 2002 race, the turns were repaved again before the 2003 races. SAFER barriers (soft wall technology) were added to the outside walls in each of the turns before the second race in 2003.

Date Opened: 1990
Location: Loudon, NH
First Race: Slick 50 300: July 11, 1993
Race record: Jeff Burton, 117.134 mph: July 13, 1997
Distance: 1.058 miles
Front stretch: 1500
Back stretch: 1500
Degree of banking:
In Turns 1-4: 12 Degrees
On Straightaways: 2 Degrees Distance: 317.4 miles
Laps #: 300 laps
Seating capacity: 91000
Tickets: (603) 783-4931
Website: www.nhis.com