Sepang

The Sepang International Circuit is in Sepang, Selangor, Malaysia, about 45 kilometres south of Kuala Lumpur and close to the capital's international airport. It was designed by Hermann Tilke and built between 1997 and 1999 near Putrajaya, the country's recently founded administrative capital, with the aim of hosting the Malaysian Grand Prix. It was officially opened on 7 March 1999.

The main circuit is 5.543 kilometres long, has 15 corners and is run clockwise. It is known for its sweeping corners and straights between 16 and 22 metres wide. One unusual feature is that the 0.927 kilometre back straight is separated from the pit straight by just one very tight hairpin. Turn 1 is long and slow, while turns 5 and 6 form a fast chicane that puts heavy loads on tyres and drivers. The back straight offers a chance to overtake. The humid tropical weather can range from hot, clear days to tropical rainstorms. Alongside the main layout there is a north circuit of 2.706 kilometres and a south circuit of 2.609 kilometres. In 2016 the track was fully resurfaced, several corners were reprofiled and the final corner was raised by roughly a metre.

In Formula One, Sepang hosted the Malaysian Grand Prix from 1999 to 2017. Eddie Irvine won the first race, driving for Ferrari. Sebastian Vettel won four times, while Fernando Alonso and Michael Schumacher won three times each. Formula One staged its final Malaysian Grand Prix at Sepang in 2017, won by Max Verstappen for Red Bull. In 2026 the circuit returned to the calendar when the Bahrain Grand Prix was moved to Sepang, and Verstappen won again for Red Bull.