| The Monster Mile | |
|---|---|
 | |
 Oval (1969–present) | |
| Location | 1131 North Dupont Highway, Dover, Delaware, 19901 |
| Time zone | UTC−5 (UTC−4 DST) |
| Coordinates | 39°11′22.56″N 75°31′49.12″W / 39.1896000°N 75.5303111°W |
| Capacity | 54,000 |
| Owner | Speedway Motorsports (November 2021–present) Dover Motorsports (April 2002–October 2021) Dover Downs Entertainment (October 1969–April 2002) |
| Broke ground | October 1967 |
| Opened | 8 March 1969 |
| Construction cost | $5.2 million USD |
| Former names | Dover Downs International Speedway (1969–2002) Dover International Speedway (2002–2021) |
| Major events | Current: NASCAR Cup Series Würth 400 (1969–present) Dover 400 (1971–2020) Former: Indy Racing League (1998–1999) USAC Championship Car (1969) |
| Website | dovermotorspeedway |
| Oval (1969–present) | |
| Surface | Concrete (1995–present) Asphalt (1969–1994) |
| Length | 1.000 miles (1.609 km) |
| Turns | 4 |
| Banking | Turns: 24° Straights: 9° |
| Race lap record | 0:19.622 (183.468 mph (295.263 km/h)) ( Greg Ray, Dallara IR-7, 1998, IRL) |
Dover Motor Speedway (formerly known as the Dover International Speedway from 2002 to 2021 and as the Dover Downs International Speedway from 1969 to 2001) is a 1-mile oval track in Dover, Delaware, hosting major events since 1969, including NASCAR and IndyCar races. It has a 54,000-seat capacity as of 2022. Adjacent to Bally's Dover, which owns the surrounding property, the speedway itself is owned by Speedway Motorsports (SMI) and managed by Mike Tatoian.
The track opened in 1969 as a combined horse and auto racing facility under the control of David P. Buckson, then-Attorney General of Delaware. The facility, particularly its horse racing endeavors, quickly faced financial troubles but was sustained by its NASCAR events and financial support from then-owner John W. Rollins. Expansion took place in the 1980s and 1990s, spurred by the rise in popularity of NASCAR in the 1980s and the legalization of slot machines in Delaware in the mid-1990s. In 2002, ownership was split, with Dover Motorsports taking over the auto racing oval. Following the Great Recession in the late 2000s, the track downsized. In 2021, SMI acquired Dover Motorsports.