Ong Yew Sin
Ong Yew Sin is a Malaysian badminton player. He won a silver medal with Teo Ee Yi at the 2023 Badminton Asia Championships and a bronze medal with Teo at the 2021 BWF World Championships.
Personal life
Ong and former Japanese national player, Aya Ohori, announced their engagement in March 2025 and were married later that June.Career
Together with Teo Ee Yi, they won the 2016 Bitburger Open and earned a silver and a bronze medal at the 2017 and 2019 SEA Games respectively. They were also runners-up at the 2019 Malaysia Masters.In January 2020, they were dropped from the national team by the Badminton Association of Malaysia. Following the incident, they went on to win their first World Tour title at the 2020 Thailand Masters. They were also semifinalists at the 2021 Indonesia Masters and the 2021 BWF World Tour Finals.
Their best achievement was winning the men's doubles silver medal at the 2023 Badminton Asia Championships after narrowly losing to Satwiksairaj Rankireddy and Chirag Shetty with a score of 21–16, 17–21, 19–21 in 66 minutes. They won a men's doubles bronze medal at the 2021 BWF World Championships, where they had to go through a narrow fight against Olympic champions Lee Yang and Wang Chi-lin in the quarterfinals. Because of their achievements, they were selected to be part of the Malaysian squad in the 2022 Thomas Cup.
Achievements
BWF World Championships
''Men's doubles''Asian Championships
Men's doubles| Year | Venue | Partner | Opponent | Score | Result | |||||||||||||||||||||||||||||||||||
| 2023 | Sheikh Rashid Bin Hamdan Indoor Hall, Dubai, United Arab Emirates |  SEA GamesMen's doubles
|