The inaugural Kiprun Singapore Half-Marathon, originally planned as a 15km event, was shortened to 10km on Sunday, September 27, due to deteriorating air quality caused by haze. Organisers made the decision early in the race, citing health concerns for participants. The haze, a recurring issue in Singapore during certain seasons, led to poor visibility and reduced air quality, prompting officials to take precautionary measures.

Runners experienced mixed reactions to the change. Some expressed frustration over the last-minute adjustment, while others understood the necessity of prioritizing safety. The race, which typically attracts thousands of participants, saw a lower turnout than expected. Officials confirmed that the decision was made in consultation with environmental experts and local authorities.

Despite the change, the event proceeded with a modified route, allowing participants to complete the 10km distance. Organisers emphasized that the health and safety of runners remained their top priority. The incident highlights the challenges of hosting outdoor events in regions prone to environmental disruptions.

The haze conditions are expected to ease in the coming days, but the event’s adjustment serves as a reminder of the impact of weather and air quality on large-scale sporting activities.