Kerstin Ong

Kerstin Ong Jing Rong (Chinese: 王浄蓉; born 8 June 1997) is a Singaporean athlete who specialises in the 100 metres hurdles. She holds the national record for the 100 metres hurdles, breaking it first at the 2025 Malaysian Open with a time of 13.86s. She made her Southeast Asian Games debut in 2025, clocking 13.47s in the heats of the 100 metres hurdles, and 13.85s in the final. However, both times were not recognised by the Singapore National Olympic Council as technical issues were reported with the timing system.

Early life and education Ong joined the Singapore Sports School through "a lucky stumble" – she wanted to skip her Chinese tuition class, and it just so happened that the Singapore Sports School direct school admission trials were happening on that day. "I went competitively into this sport because I joined the Singapore Sports School, and my passion and discipline grew there," she recalled.

Athletic career

International competitions 2025 SEA Games (Thailand) Made her SEA Games debut, initially clocking 13.47s in the heats and 13.85s in the final.

2025 Singapore Open

2025 Malaysian Open Set a national record of 13.86s in the 100m hurdles, breaking the previous record of 13.87s held by Nur Izlyn Zaini by 0.01s.

2019 Singapore Open Won bronze medal in the 100m hurdles with a time of 14.94s, her first medal in her pet event.

2018 Singapore Open Won bronze medal in the 4x100m relay