Clark International Speedway

Clark International Speedway, abbreviated as CIS, is a motorsport venue at the Clark Freeport Zone in Mabalacat, Pampanga, Philippines.

History
It was built on November 15, 2008. The 4.189 km circuit features 18 turns and runs in a counter-clockwise direction. Clark International Speedway hosts both 2- and 4-wheeled events. This includes the Philippine Superbike Championship, Toyota Vios Cup, Philippine GT Championship, Philippine Touring Car Championship, and FlatOut Race Series. The layout also has a 1 km drag strip that hosts the National Drag Racing Championship.

The Philippine Sports Commission and V8 Supercars CEO Martin Whitaker announced that the circuit would hold a round of V8 Supercars on 10–11 November 2012, but series management never officially ratified the event and it did not appear on the calendar.

The circuit hosted the second event of the 2016–17 Formula 4 South East Asia Championship. This was the first event in the motorsport venue to be certified by the Fédération Internationale de l'Automobile.

Aside from car races, CIS also hosts several motorcycle sports including the Pirelli Petron National Motorcycle Racing Championship and the Philippine Superbike Championship held every May to October.