Private school administrative officer Ivan Low came out tops in the men's 15km race at the inaugural ST Run in the Park on Sunday morning.
The 28-year-old clocked 53min 22.34sec, to take the crown ahead of second-placed Colin Tung.
The women's 15km race was won by Jenny Huang, 40, in a time of 1hr 9min 22.55sec.
Meanwhile, the 10km races were won by undergraduates Fang Jian Yong, 23, and Clara Wong. They clocked 37:24.13 and 45:47.38 respectively.
A total of 2,300 runners participated in the 15km race, while a further 3,700 ran in the 10km.