The Spa 24 Hours had been introduced in 1924, and other races followed. As on the Nürburgring, both a 24h race for touring cars and GTs is held, and an endurance race for sports cars and GTs. The 500km race at Spa counted towards the World Sportscar Championship from 1963 onwards. Since 1966, it is run for 1000km, following the 1000km Nürburgring and 1000km Monza. Due to safety problems on the traditional long and very fast 14km track over public roads, the race was shortened to 762km in 1974 and discontinued after 1975.
The 1000km race was resumed in 1982 after the track was made safer by shortening it to 7km. In 1989 and 1990, the race distance was lowered to 480km as a rule change required the use of Formula One-derived engines that last no longer. Due to the decline of the WSC, the "1000km" was discontinued after 1990 even before the WSC closed.
† - The 1975 event was originally scheduled for 1000km, but was shortened to 750km the day of the race due to an approaching storm.
- Le Mans Series - 2007 1000km of Spa