Ong Yew Sin

Ong Yew Sin (; born 30 January 1995) 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 Year Venue Partner Opponent Score Result 2021 Palacio de los Deportes Carolina Marín, Huelva, Spain Teo Ee Yi Takuro Hoki Yugo Kobayashi 13–21, 9–21 Bronze Bronze Asian Championships Men's doubles Year Venue Partner Opponent Score Result 2023 Sheikh Rashid Bin Hamdan Indoor Hall, Dubai, United Arab Emirates Teo Ee Yi Satwiksairaj Rankireddy Chirag Shetty 21–16, 17–21, 19–21Silver Silver

SEA Games Men's doubles Year Venue Partner Opponent Score Result 2017 Axiata Arena,Kuala Lumpur, Malaysia Teo Ee Yi Kittinupong Kedren Dechapol Puavaranukroh 19–21, 22–20, 17–21 Silver Silver 2019 Muntinlupa Sports Complex,Metro Manila, Philippines Teo Ee Yi Bodin Isara Maneepong Jongjit 12–21, 21–16, 19–21 Bronze Bronze

BWF World Tour (1 title, 2 runners-up) The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018, is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF). The BWF World Tours are divided into levels of World Tour Finals, Super 1000, Super 750, Super 500, Super 300 (part of the HSBC World Tour), and the BWF Tour Super 100.

Men's doubles Year Tournament Level Partner Opponent Score Result 2019 Malaysia Masters Super 500 Teo Ee Yi Marcus Fernaldi Gideon Kevin Sanjaya Sukamuljo 15–21, 16–21 Runner-up 2020 Thailand Masters Super 300 Teo Ee Yi Huang Kaixiang Liu Cheng 18–21, 21–17, 21–17 Winner 2022 Australian Open Super 300 Teo Ee Yi Liu Yuchen Ou Xuanyi 16–21, 20–22 Runner-up

BWF Grand Prix (1 title, 1 runner-up) The BWF Grand Prix had two levels, the Grand Prix and Grand Prix Gold. It was a series of badminton tournaments sanctioned by the Badminton World Federation (BWF) and played between 2007 and 2017.

Men's doubles Year Tournament Partner Opponent Score Result 2016 Bitburger Open Teo Ee Yi Michael Fuchs Johannes Schöttler 21–16, 21–18 Winner 2017 New Zealand Open Teo Ee Yi Chen Hung-ling Wang Chi-lin 16–21, 18–21 Runner-up BWF Grand Prix Gold tournament BWF Grand Prix tournament

BWF International Challenge/Series (5 titles, 1 runner-up) Men's doubles Year Tournament Partner Opponent Score Result 2014 Vietnam International Series Low Juan Shen Jagdish Singh Roni Tan Wee Long 21–19, 21–13 Winner 2014 Bangladesh International Low Juan Shen Darren Isaac Devadass Tai An Khang 19–21, 21–8, 21–13 Winner 2016 Portugal International Teo Ee Yi Đỗ Tuấn Đức Phạm Hồng Nam 21–17, 24–22 Winner 2016 Romanian International Teo Ee Yi Zvonimir Đurkinjak Zvonimir Hölbling 21–13, 21–9 Winner 2016 Vietnam International Teo Ee Yi Kenya Mitsuhashi Yuta Watanabe 21–19, 21–14 Winner

Mixed doubles Year Tournament Partner Opponent Score Result 2016 Romanian International Peck Yen Wei Wong Fai Yin Shevon Jemie Lai 15–21, 17–21 Runner-up BWF International Challenge tournament BWF International Series tournament