|Major events||FIA Sportscar Championship, F3 Euroseries, F3000, French motorcycle Grand Prix, MotoGP|
The race circuit opened on 3 October 1960 as the first purpose-built race circuit in France. Initially 1.752 kilometres (1.089 mi) long it was expanded in 1973 and 1989 to its current 3.636 kilometres (2.259 mi) length. In 2007 the circuit was modernized including a new control tower, a new pitlane and widening the track to 12 metres (39 ft).
The circuit is named after Paul Armagnac, a Nogaro-born racing driver of the 1950s and 1960s. He raced D.B. sportscars and was killed on 21 October 1962 in an accident during practice for the 1000 km de Paris at Montlhéry.
The track is relatively flat, with 6 metres (20 ft) difference in elevation between its highest and lowest points. It is raced clockwise and consists of two long straights, the 950 metres (3,117 ft) long start-finish straight named after Nogaro-born motorcycle constructor Claude Fior and the almost parallel aerodrome straight, linked by sections of several slow corners.
Events hosted by the circuit have included:
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