In this Malay name, there is no surname or family name. The name Rumsani is a patronymic, and the person should be referred to by their given name, Izzuddin. The word "bin"/"ibn" or "binti"/"binte" means 'son of' or 'daughter of', respectively.
Nur Izzuddin bin Mohd Rumsani (born 11 November 1997) is a Malaysian badminton player. A former world number one, Asian championship silver medalist and BWF World Tour Finals runner-up, he and his partner Goh Sze Fei won the men's doubles titles at the 2024 China Open and 2026 Indonesia Open, both BWF World Tour Super 1000 tournaments. The pair reached the world number one ranking on 27 May 2025.
In January 2017, Izzuddin and his partner Goh Sze Fei entered their first Grand Prix Gold final at the 2017 Malaysia Masters and finished up as runner-ups.
In January, following their underwhelming results in the past few months, Izzuddin and long-time partner Goh Sze Fei decided to split-up, citing lack of connection and loss of trust. In March, Izzuddin and new partner Muhammad Haikal reached their first BWF World Tour final at the 2023 Ruichang China Masters, but went down to the home pair of Chen Boyang and Liu Yi in rubber game. Around four months after splitting up, Izzuddin and Goh Sze Fei reunited at the end of May. The pair set aside their differences and decided to rekindle their partnership in quest for the 2024 Summer Olympics spot. In July, Izzuddin and Goh competed at the 2023 U.S. Open, their first tournament after reuniting. The pair emerged as winners defeating Chinese Taipei's Lee Fang-chih and Lee Fang-jen in the final. The duo also won the Super 100 event in the Kaohsiung and Abu Dhabi Masters.
2024
Izzuddin started the 2024 season with unsatisfactory results, as he and Goh suffered multiple early rounds defeats in the Asian and European leg. Izzuddin and Goh finally reached the final of the Asian Championships in April, winning the silver medal. Their performance started to improve as evidenced by the results they achieved by reaching the quarter-finals of the Malaysia Masters, Singapore Open, and Indonesia Open. In August, it was reported that the pair had decided to leave the national team, and would officially start their career as independent players in early September. The duo then won the Japan Open in August, China Open in September, and Arctic Open in October.
In December, Izzuddin and Goh finished their 2024 season as the runners-up of the BWF World Tour Finals, losing to Kim Astrup and Anders Skaarup Rasmussen of Denmark in the final with a score of 17–21, 21–17, 11–21. Their achievement elevated them to world number 3, the highest ever ranking in their career. With that, they have become the top Malaysian men's doubles pair, taking over Olympic bronze medalists Aaron Chia and Soh Wooi Yik. That achievement also marks them being the first men's doubles pair in Malaysia to reach the final of the BWF World Tour since its establishment in 2018.
2025
Started the season as world number 2 in the BWF ranking, Izzuddin and Goh snapped their first India Open title by defeating Korean pair of Kim Won-ho and Seo Seung-jae in 3 sets. It was also the first title of the year for the pair. In July, Izzuddin and Goh failed to defend their Japan Open crown the previous year, losing to Kim and Seo in straight sets.
2026
In January, Izzuddin and Goh won their first title in the Indonesia Masters against Raymond Indra and Nikolaus Joaquin of Indonesia. However, they lost their second final at their home ground in Malaysia Masters against the Danish pair of Daniel Lundgaard and Mads Vestergaard. In early June, Izzuddin and Goh ended the 18-year wait for men's doubles champion at the Indonesia Open by defeating the same opponent they faced back in January, Indra and Joaquin. At the BWF World Championships, Izzuddin and Goh advanced to the quarterfinals stage before being knocked out by Kim and Seo in 40 minutes. Two months later, They reached their fourth final of the year where they lost against Man Wei Chong and Tee Kai Wun in an all-Malaysian final at the French Open in three games.
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, Super1000, Super750, Super500, Super300, and the BWF Tour Super100.
↑Sukumar, Dev (10 January 2018). "Action-Packed Season Ahead!". Badminton World Federation. Archived from the original on 13 January 2018. Retrieved 15 January 2018.
