Smog Drives Runners Inside Marina Square Mall
Wildfires burning in neighboring Indonesia have forced fitness enthusiasts in Singapore to turn shopping mall corridors into makeshift running tracks to escape the worst air quality levels recorded in more than a decade.
Forest and peatland fires in Borneo and Sumatra have blown thick haze across the city-state, prompting the cancellation of outdoor sports and pushing pollution indices skyward. On a recent Saturday morning before shops opened for business, more than 80 runners gathered at the Marina Square shopping center to complete laps across two floors, moving through storefronts under strict behavioral guidelines that prohibit sprinting, overtaking, shouting, spitting, and wiping sweat on the floor.
Runners Adapt to Indoor Circuits
Athletes preparing for upcoming endurance events have embraced the air-conditioned corridors despite the monotony of the indoor routes. Angeline Zeng, a 57-year-old banking employee who ran 10 loops totaling approximately 10 kilometers, noted that the chilled indoor air simulates overseas running conditions, though she acknowledged that long distances can become repetitive. Paul Wong, a 54-year-old retiree training for the Singapore International Marathon, completed 21 laps totaling 21 kilometers. Wong stated that running laps through the mall is preferable to staring at a gym wall on a treadmill, which he compared to a hamster run.
Organizers from the Singapore Runners Club and X-Run coordinated closely with building management to secure approval for the early morning sessions. Eddie Chang, lead coach for X-Run, explained that planners had to evaluate walkway widths, tight corners, and operating hours to ensure the workouts did not disrupt commerce. Chang emphasized that high outdoor humidity combined with severe haze doubles or triples the physical impact of training outdoors, making indoor venues a necessary alternative.
Air Quality and Future Indoor Events
Although air pollution levels moderated slightly during the week, Singapore remained ranked among the 20 most polluted major cities globally according to Swiss-based air monitor IQAir. Both running clubs indicated they are prepared to extend their mall workouts and approach additional building management teams if regional wildfire smoke persists. Eugene Beh, founder of the Singapore Runners Club, noted that utilizing retail spaces for athletic training introduces a novel concept to the local sports community.
Frequently Asked Questions
Which Indonesian islands generated the wildfire smoke affecting Singapore?
The haze affecting air quality across Singapore originates from forest and peatland fires located on the Indonesian islands of Borneo and Sumatra.

What specific distance did the longest indoor mall run reach?
Paul Wong, a member of the X-Run club, completed 21 loops inside the Marina Square shopping center, covering a distance of approximately 21 kilometers.
Which international monitoring organization tracks Singapore’s pollution ranking?
Swiss-based air quality monitor IQAir tracks global pollution levels and placed Singapore among the 20 most polluted major cities worldwide.
I love it because the aircon makes you feel like you’re running overseas where there’s cold temperatures, so it’s really great.
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