Zheng Siwei (; born 26 February 1997) is a Chinese badminton player specializing in doubles. He is an Olympic gold medalist, a three-time World Champion and two-time Asian Games gold medalist in the mixed doubles with his current partner Huang Yaqiong. He helped the national team clinch the 2018 Thomas Cup and also 2019 and 2023 Sudirman Cups.
Zheng joined the national team in 2013, and excelled in the junior events, collecting four gold medals, a silver and a bronze at the World Junior Championships, also six golds and a silver at the Asian Junior Championships from 2013 to 2015. He also participated in the senior event, winning doubles titles in New Zealand and Brasil Open. For his achievements in 2015, the BWF awarded him the Eddy Choong Most Promising Player of the Year.
Zheng achieved his breakthrough in 2016 by achieving the world number 1 ranking in mixed doubles partnering with Chen Qingchen in December 2016. He and Chen reached thirteen Superseries finals, won the year-end tournament Dubai World Superseries Finals in 2016 and 2017, and the silver medal at the 2017 World Championships. He forged a new mixed doubles pairing with Huang Yaqiong in November 2017, and started their partnership by winning the China, Hong Kong and Macau Open in consecutive weeks. He again ascended to the mixed doubles world number 1 ranking on 9 August 2018, with the achievement of seven 2018 World Tour titles, and gold medals at the World Championships and Asian Games.
In November 2024, Zheng announced his retirement from international badminton. The 2024 BWF World Tour Finals was his final tournament.
Career 2018 Zheng's 2018 season began in January with a runner-up finish at the Malaysia Masters with Huang Yaqiong, followed immediately by a title victory at the Indonesia Masters. In March, he reached the final of the All England Open to finish as runner-up, and later secured a bronze medal at the Asian Championships in April. His momentum shifted to team success in May as he helped China reclaim the Thomas Cup trophy. In June, marked the start of an incredible winning streak, beginning with a title at the Malaysia Open, followed by capturing the gold medal at the World Championships in August. Later that month at the Asian Games in Jakarta, he further solidified his status by winning two gold medals in both the men's team and mixed doubles events. His relentless form continued as he secured back-to-back titles at the Japan and China Open in September, followed by another double-victory at the Denmark and French Open in October. After clinching the Fuzhou China Open title in November, Zheng and Huang concluded his prolific year in December as the runner-up at the BWF World Tour Finals.
2019 Zheng's started the 2019 season in January by defending his Indonesia Masters title and followed it up with a landmark victory in March, capturing his first-ever All England Open crown. In April, he secured his third consecutive Malaysia Open title, before earning a bronze medal at the Asian Championships, later transitioning to team duties in May to help China reclaim the Sudirman Cup. His mid-season momentum remained unstoppable as he won the Indonesia Open in July for the first time, and successfully retained his gold medal at the World Championships in August. September saw him claim a third straight China Open title, though he settled for a runner-up finish at the Korea Open shortly after. His consistency continued through the autumn with runner-up finishes at both the French Open in October and the Fuzhou China Open in November. Finally, Zheng concluded his stellar campaign in December by winning his third season-ending finale tournament, the BWF World Tour Finals.
2020–2022 Zheng opened 2020 with back-to-back titles at the Malaysia and Indonesia Masters before the pandemic disrupted the global schedule. In 2021, Zheng with his partner Huang Yaqiong, competed at the 2020 Summer Olympics as the top seeds. They won a silver medal after being defeated by their compatriots Wang Yilyu and Huang Dongping in the final in a close rubber game.
The early months of 2022 were marked by a brief experimental partnership with Zhang Shuxian; however, the duo faced challenges finding their rhythm, suffering a first-round exit at the German Open against Jones Ralfy Jansen and Linda Efler, and a quarter-final defeat at the Korea Masters to Jin Yong and Lee Yu-lim. Upon reuniting with Huang Yaqiong, Zheng immediately regained his unstoppable form, with a winning streak that began with a gold medal at the Asian Championships in April. This momentum swept through with five consecutive titles at the Thailand Open, Indonesia Masters, Indonesia Open, Malaysia Open, and Malaysia Masters. In August, he reached a monumental milestone by capturing his third World Championships gold medal. His momentum carried through the European leg with victories at the Denmark and French Open in October, before he finally punctuated his sensational 2022 campaign with ten titles by winning the World Tour Finals in December, with an award as the Pair of The Year by the Badminton World Federation.
2023 Zheng and Huang competed as top seeds and three-time defending champions in the Malaysia Open at the start of the year. They defended their title without dropping a set throughout the tournament. However, a week later they lost in the semi-finals in the India Open to Yuta Watanabe and Arisa Higashino. In March, the pair of Zheng and Huang participated in the All England Open and were crowned champions for the second time in their career as a pair by beating Seo Seung-jae and Chae Yoo-jung. At the end of April, Zheng and Huang participated in the Asian Championships as defending champions, and finished with a silver medal after losing to their younger compatriots Jiang Zhenbang and Wei Yaxin. In May, the pair then helped the Chinese team to lift the Sudirman Cup trophy by winning all 4 matches they played. In June, after losing to Kim Won-ho and Jeong Na-eun in the quarter-finals of the Singapore, The pair won their third Super 1000 title of the season in the Indonesia Open, defeating Watanabe and Higashino in straight games in the final.
In August, Zheng and Huang entered the World Championships as the top seeds and defending champions. Zheng reached his fifth final without dropping a single game, but the duo lost to Seo Seung-jae and Chae Yoo-jung, a pair they never lost to in 9 meetings, in three close games. In October, Zheng and Huang, who were 2018 Asian Games champions, successfully defended their title they won 5 years ago at the 2022 Asian Games, avenging their defeat to Seo and Chae in the semi-finals and defeating Watanabe and Higashino in the final in straight games. In October, he reached the final of the Denmark Open, finishing as the runner-up after a hard-fought match against compatriots Feng Yanzhe and Huang Dongping, followed by a quarter-final appearance at the French Open. His form surged in November as he secured back-to-back titles, first capturing the Kumamoto Japan Masters and then dominating the China Masters in Shenzhen. In December, Zheng achieved the honour of being the first shuttler ever to secure five mixed doubles titles at the World Tour Finals when he with his partner Huang Yaqiong defeated Feng Yanzhe and Huang Dongping. In the semi-finals, it was a masterclass display as they steamrolled reigning world champions Seo and Chae.
2024–2025 Zheng and Huang competed as the top seeds and four-time defending champions at the Malaysia Open. However, they lost in the quarter-finals to Kim Won-ho and Jeong Na-eun, in three games. After the match, Zheng said that they were ill. As a result, they withdrew from the India Open the following week.
However, they returned to competition at the Indonesia Masters, which was held a week after the India Open, and they won the title.
In May, they competed at the Singapore Open, and won the title, which was their first title as a pair at the tournament. A week later, they competed at the Indonesia Open as the two-time defending champions. However, they were outclassed in the final in two straight games by compatriats Jiang Zhenbang and Wei Yaxin.
In July, after being out of international competition for more than a month, Zheng and Huang returned to the Olympics for the second time. This time, they came back much stronger by winning the gold medal, winning all of their matches in two straight games. In the final, they produced a masterclass performance against Kim Won-ho and Jeong Na-eun, with a final score of 21–8, 21–11.
In November, Zheng announced his retirement from international badminton, citing needing a balance between career and family. This was a result of his family welcoming his second child, a daughter. The following month, Zheng and Huang won the World Tour Finals after defeating Chen Tang Jie and Toh Ee Wei in a grueling three sets match of 21–18, 14–21, 21–17. He officially retired from the national team and international competitions shortly thereafter, and his farewell party was held after the 2025 BWF World Tour Finals in Hangzhou.
Achievements
Olympic Games Mixed doubles Year Venue Partner Opponent Score Result Ref 2020 Musashino Forest Sport Plaza, Tokyo, Japan Huang Yaqiong Wang Yilyu Huang Dongping 17–21, 21–17, 19–21 Silver 2024 Porte de La Chapelle Arena, Paris, France Huang Yaqiong Kim Won-ho Jeong Na-eun 21–8, 21–11 Gold
World Championships Mixed doubles Year Venue Partner Opponent Score Result Ref 2017 Emirates Arena,Glasgow, Scotland Chen Qingchen Tontowi Ahmad Liliyana Natsir 21–15, 16–21, 15–21 Silver 2018 Nanjing Youth Olympic Sports Park,Nanjing, China Huang Yaqiong Wang Yilyu Huang Dongping 21–17, 21–19 Gold 2019 St. Jakobshalle,Basel, Switzerland Huang Yaqiong Dechapol Puavaranukroh Sapsiree Taerattanachai 21–8, 21–12 Gold 2022 Tokyo Metropolitan Gymnasium,Tokyo, Japan Huang Yaqiong Yuta Watanabe Arisa Higashino 21–13, 21–16 Gold 2023 Royal Arena,Copenhagen, Denmark Huang Yaqiong Seo Seung-jae Chae Yoo-jung 17–21, 21–10, 18–21 Silver
Asian Games Mixed doubles Year Venue Partner Opponent Score Result Ref 2018 Istora Gelora Bung Karno, Jakarta, Indonesia Huang Yaqiong Tang Chun Man Tse Ying Suet 21–8, 21–15 Gold 2022 Binjiang Gymnasium, Hangzhou, China Huang Yaqiong Yuta Watanabe Arisa Higashino 21–15, 21–14 Gold
Asian Championships Mixed doubles Year Venue Partner Opponent Score Result Ref 2018 Wuhan Sports Center Gymnasium,Wuhan, China Huang Yaqiong Tontowi Ahmad Liliyana Natsir 11–21, 13–21 Bronze 2019 Wuhan Sports Center Gymnasium,Wuhan, China Huang Yaqiong He Jiting Du Yue 14–21, 18–21 Bronze 2022 Muntinlupa Sports Complex,Metro Manila, Philippines Huang Yaqiong Wang Yilyu Huang Dongping 21–17, 21–8 Gold 2023 Sheikh Rashid Bin Hamdan Indoor Hall,Dubai, United Arab Emirates Huang Yaqiong Jiang Zhenbang Wei Yaxin 15–21, 14–21 Silver 2024 Ningbo Olympic Sports Center Gymnasium,Ningbo, China Huang Yaqiong Seo Seung-jae Chae Yoo-jung 21–9, 13–21, 16–21 Bronze
World Junior Championships Boys' doubles Year Venue Partner Opponent Score Result Ref 2013 Hua Mark Indoor Stadium,Bangkok, Thailand Huang Kaixiang Li Junhui Liu Yuchen 21–14, 13–21, 20–22 Silver 2015 Centro de Alto Rendimiento de la Videna,Lima, Peru He Jiting Joel Eipe Frederik Søgaard 21–14, 21–16 Gold
Mixed doubles Year Venue Partner Opponent Score Result Ref 2015 Centro de Alto Rendimiento de la Videna,Lima, Peru Chen Qingchen He Jiting Du Yue 21–19, 21–8 Gold
Asian Junior Championships Boys' doubles Year Venue Partner Opponent Score Result Ref 2013 Likas Indoor Stadium,Kota Kinabalu, Malaysia Huang Kaixiang Li Junhui Liu Yuchen 15–21, 14–21 Silver 2014 Taipei Gymnasium,Taipei, Taiwan Huang Kaixiang Kim Jae-hwan Kim Jung-ho 21–16, 21–14 Gold 2015 CPB Badminton Training Center,Bangkok, Thailand He Jiting Han Chengkai Zhou Haodong 21–19, 18–21, 21–18 Gold
Mixed doubles