The first competitive marathon in Singapore was held on 5 December 1982, with an estimated participation size of 15,000 runners.

[4] In the half marathon, 29-year-old John Gibson, a Briton living in Hong Kong, died after collapsing 1km away from the finish line at the Padang.

[5] In 2019, the full- and half-marathons were held in the evening in order to fulfill criteria to be listed in the Abbott World Marathon Majors, instead of the usual flag off timing at dawn.

[7] In 2020, Singapore Marathon moved its race event to a virtual format due to the advisories surrounding the COVID-19 pandemic.

The 2006 edition also acted as the country's national championships, with Elangovan Ganesan and Vivian Tan Yoke Pin taking the honours.