Three national records were toppled on the first day of the 77th Singapore Open Track and Field Championships at the National Stadium on Saturday evening.

The first record fell when Ang Chen Xiang ran 14.44sec in the men's 110m hurdles final, eclipsing Abdul Hakeem Halim's previous mark by a mere 0.01.

Then, women's sprinter Shanti Pereira ran 11.80 in the 100m final, breaking her previous national record mark set in 2013 by 0.09.

In the penultimate event of the day, the women's 4x100m quartet of Shanti, Wendy Enn, Eugenia Tan and Smriti Menon clocked 46.64 to break the previous record of 46.68 set by Lee Yan Lin, Ann Siao Mei, Amanda Choo and Wong Ze Teng in December 2007.

Indonesia's Maria Natalia Londa set a new Singapore Open record in the women's long jump with a distance of 6.50m.