The IJM ALLIANZ Duo Highway Challenge is a distinctive Malaysian road race held on fully closed highways in Subang Jaya, Selangor, Malaysia. Unlike a traditional city marathon that winds through downtown streets, this event gives runners the unusual opportunity to race across major highway corridors with wide open lanes, long straight sections, flyovers, and an uninterrupted road-running environment.
The “Duo” identity comes from the race’s use of two highway settings, the NPE and BESRAYA Highways. The main race venue is listed as NPE Highway, Sunway, in front of Sunway Pyramid, placing the event in one of the Klang Valley’s most recognizable urban and commercial districts.
The race offers a broad set of distances, including 42.195 km marathon, 21 km half marathon, 10 km, and 5 km, making it suitable for marathoners, half marathoners, recreational runners, and newer participants who want a shorter highway-running experience. The marathon is listed by AIMS as a full member race, and Finishers identifies the event as a road race with marathon, half marathon, 10 km, and 5 km distances.
For runners, the appeal is the rare chance to run on a highway built for speed and flow rather than the usual stop-start rhythm of urban roads. The course atmosphere is open, exposed, and energetic, with the visual drama of racing under city lights and early-morning skies on infrastructure that is normally reserved for vehicles. It is especially attractive for runners looking for a different kind of Malaysian race experience, combining Klang Valley accessibility with a closed-road endurance challenge.