|Lee Zii Jia|
|Born||29 March 1998|
Alor Setar, Kedah, Malaysia
|Residence||Bukit Kiara, Kuala Lumpur, Malaysia|
|Height||1.86 m (6 ft 1 in)|
|Career record||220 wins, 98 losses|
|Highest ranking||2 (25 October 2022)|
|Current ranking||2 (03 January 2023)|
Lee Zii Jia (Chinese: 李梓嘉; pinyin: Lǐ Zǐjiā; Pe̍h-ōe-jī: Lí Chú-ka, born 29 March 1998) is a Malaysian badminton player. He was the men's singles gold medalist at the 2019 Southeast Asian Games and won his first BWF Super 1000 title at the 2021 All England Open. Lee is the reigning men's singles Asian champion, winning the title at the 2022 Badminton Asia Championships.
Lee Zii Jia was born in Alor Setar, Kedah to Chinese Malaysians Lee Chee Hin and Leow Siet Peng, teachers and former basketball internationals. He was first introduced to badminton by his parents at the age of 6. In his earlier years, he studied at Keat Hwa H Primary School in Alor Setar, Kedah. Due to his results in the under 12 competition, he was soon drafted into the Bukit Jalil Sports School.
In 2015, he became the junior champion in the Perak and Selangor Badminton Open. These standout performances and wins in the international circuit earned him a place in the Badminton Association of Malaysia.
In November 2016, Lee won a bronze medal in the World Junior Championships after losing to Chico Aura Dwi Wardoyo in the semifinals. In the same month, he advanced to the final of India International Series but was defeated by Lakshya Sen.
In February 2017, Lee reached the semifinals of the Thailand Masters, where he lost to Kantaphon Wangcharoen. In September 2017, he won his first senior title at the Polish International, against Soong Joo Ven in the final. In November 2017, Lee reached the semifinals of the Bitburger Open.
In October 2018, Lee reached the final of the Chinese Taipei Open by defeating the World No. 4 men's singles player, Chou Tien-chen in the semifinals. He defeated Riichi Takeshita in the final to win his first BWF World Tour title and second international title overall. In doing so, he became the second Malaysian other than Lee Chong Wei to win a BWF top flight men's singles title since 2013. Lee then reached the final of the Korea Masters but lost to Son Wan-ho.
Lee started the 2019 season by competing in the Thailand Masters. He lost in the quarter finals to Brice Leverdez of France in straight games. In the next tournaments, he also finished in the quarter finals in Malaysia Masters, Indonesia Masters, and German Open. He later lost in the early stage of Swiss, Malaysia, and Singapore Open's. He admitted that he had struggled to cope with financial difficulties, lack of progress and unfairness that affected his performance.
In August, Lee finally managed to make it into the semi-finals in the Thailand Open, where he lost to Chou Tien-chen of Taiwan. This was nonetheless an improvement to his being a quarter finalist in New Zealand and Indonesia Open's. He qualified to compete in World Championships in Basel, Switzerland, but lost to the World No. 1 men's singles player, and the eventual World Champion, Kento Momota of Japan in the quarter finals. In November, he was forced to retire in the second round of the China Open, and decided to withdraw as well from the next tournament in Hong Kong, due suffering from food poisoning and fever. Lee reached world No. 11 in the BWF World ranking on 12 November. In December, he won the men's singles gold medal at the Southeast Asian Games, and also helped the national men's team win the silver medal.
Lee opened the season by participating in Southeast Asian tours in Malaysia, Indonesia, and Thailand Masters, with his best result being a semi-finalist in Malaysia, wherein he lost to the world number 1 Kento Momota in straight games. In February, he alongside Malaysia men's team, won the silver medal at the Asia Team Championships, during which time he was the national team captain He won 4 out of 5 matches in the Asia Team Championships, losing in the final match against Anthony Sinisuka Ginting.
Later in March, due to the outbreak of COVID-19 in Europe, the German Open was cancelled. Lee's next tournament was the All England Open, which was also be his debut at the tournament because his ranking was previously too low to qualify. He won against Jonatan Christie, who had won in four previous matches. He continued this win streak against Lu Guangzu and the then-Olympic champion Chen Long. In the semi-finals, he lost to Viktor Axelsen. The match lasted for 73 minutes. Further, Lee's performance at the All England Open raised his world ranking to no. 10 on 17 March 2020.
In March, Lee won his first Super 1000 tournament at the All England Open, defeating the defending champion Viktor Axelsen by a score of 30–29, 20–22, 21–9. In July 2021, in the 2020 Tokyo Summer Olympics, Lee took part in the men's singles and won against Artem Pochtarov with a score of 21–5 and 21–11. In the subsequent match against Brice Leverdez, he won with a score of 21–17 and 21–5. Lee was eliminated in the round of 16, where he was defeated by Chen Long with a score of 21–8, 19–21, and 5–21. On 7 November 2021, Lee reached the final of Hylo Open, however Lee had to retire due to the injuries he sustained while playing against Singapore's Loh Kean Yew with a score of 21–19, 13–21, 12–17.
In January 2022, there were speculation that Lee had indicated his intention to leave the Badminton Association of Malaysia (BAM), citing unhappiness with the association, though reasons were never disclosed. He eventually officially resigned on 19 January. In response, Lee was banned for two years from participating in any international tournaments that required BAM's approval as well as any Badminton World Federation (BWF)–sanctioned tournaments. With the public and international players responding negatively on the ban, Lee appealed against the ban on 24 January 2022. The ban was lifted after Lee and BAM met on 25 January 2022, with the terms yet to be revealed.
In May, Lee won his first title of the year, the 2022 Badminton Asia Championships, defeating Indonesia's Jonatan Christie 21–17, 23–21 in straight sets. Lee became the sixth Malaysian men's singles player to win the Asian Championships title. On 22 May 2022, Lee won his first BWF World Tour Super 500 title at the 2022 Thailand Open, defeating China's Li Shifeng with a rubber set score of 17–21, 21–11, 23–21 in 70 minutes.
In June, Lee participated in 3 events: the Indonesia Masters, the Indonesia Open and the Malaysia Open, his home event.
At the Indonesia Masters, Lee, the 5th seed, lost to the 4th seeded Anthony Sinisuka Ginting in the quarter-finals in 3 games, 21–18, 15–21, 16–21.
A week later, Lee lost to Viktor Axelsen, the World No 1 at the Indonesia Open semi-finals, with a score of 21–19, 11–21, 21–23 in 70 minutes.
In late June, Lee took part in the Malaysia Open as the 5th seed. He surprisingly lost to Indonesia's Shesar Hiren Rhustavito in the Round of 16 in 3 games, 19–21, 21–19, 16–21 in an hour and six minutes.
Claiming injury, he decided to skip the Commonwealth Games and focus on the upcoming World Championships which would be held in August. As the fifth seed in World Championships, he lost to China's shuttler Zhao Junpeng in the third round in three games, with a match score of 19–21, 21–11, 19–21. The match lasted for an hour and five minutes.
A week later, Lee lost to Kidambi Srikanth, the Former World No 1 at the Round of 32 of Japan Open, with a score of 20–22, 21-23 in 38 minutes.
On October 22 2022, Lee defeated former World Champion Loh Kean Yew of Singapore, with a score of 21-18, 21-15 in 40 minutes  and reached the Denmark Open final before losing to Shi Yuqi from China, with a score of 18-21, 21-16, 12-21 in 64 minutes. 
A few days later, Lee as 3rd seed in French Open, was surprised with another defeat at the Round of 32, with a score of 18-21, 19-21 to the same opponent, Shesar Hiren Rhustavito from Indonesia that defeated him back in Malaysia open earlier in June. 
Australia Open was Lee's last hope of securing a final spot in the World Tour Finals. However, things did not go his way as one of his hands suffered a minor injury during the third game and suffered a loss of 22-20, 15-21, 16-21 to Lu Guang Zu from China in 70 minutes. His loss ended the last hope when his opponent went on to secure the final spot in the World Tour Finals. 
2022 was a year of ups and down for Lee, as inconsistency was the main issue that led to his poor performance results in the second half of the year. On the bright side of it, Lee's achievement after leaving BAM has also shown his capability and determination to be a more consistent player in years to come.
|2022||Muntinlupa Sports Complex, Metro Manila, Philippines||Jonatan Christie||21–17, 23–21|
|2019||Muntinlupa Sports Complex, Metro Manila, Philippines||Loh Kean Yew||21–18, 21–18|
|2016||Bilbao Arena, Bilbao, Spain||Chico Aura Dwi Wardoyo||19–21, 18–21|
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 Tour is divided into levels of World Tour Finals, Super 1000, Super 750, Super 500, Super 300, and the BWF Tour Super 100.
|2018||Chinese Taipei Open||Super 300||Riichi Takeshita||21–17, 16–21, 21–11||Winner|
|2018||Korea Masters||Super 300||Son Wan-ho||16–21, 11–21||Runner-up|
|2021||All England Open||Super 1000||Viktor Axelsen||30–29, 20–22, 21–9||Winner|
|2021||Hylo Open||Super 500||Loh Kean Yew||21–19, 13–21, 12–17r||Runner-up|
|2022||Thailand Open||Super 500||Li Shifeng||17–21, 21–11, 23–21||Winner|
|2022||Denmark Open||Super 750||Shi Yuqi||18–21, 21–16, 12–21||Runner-up|
|2016||India International Series||Lakshya Sen||13–11, 3–11, 6–11, 6–11||Runner-up|
|2017||Polish International||Soong Joo Ven||21–17, 21–16||Winner|
|Asian Junior Championships||QF||QF||QF|
|World Junior Championships||6th||5th||S|
|Southeast Asian Games||S||NH||S||NH||A||NH|
|Asia Team Championships||NH||B||NH||S||NH||G|
|Asian Junior Championships||2R||3R||QF|
|World Junior Championships||1R||1R||B|
|Southeast Asian Games||1R||NH||G||NH||A||NH|
|Tournament||BWF Superseries / Grand Prix||BWF World Tour||Best|
|Malaysia Open||A||1R||NH||2R||Q||2R ('22)|
|India Open||A||1R||A||NH||A||Q||1R ('18)|
|Indonesia Masters||NH||A||QF||1R||1R||QF||Q||QF ('19,'22)|
|Thailand Masters||SF||A||QF||A||NH||SF ('17)|
|German Open||A||QF||NH||SF||SF' ('22)|
|All England Open||A||SF||W||SF||W ('21)|
|Swiss Open||A||1R||1R||NH||SF||A||SF ('21)|
|Malaysia Masters||1R||2R||QF||SF||NH||A||SF ('20)|
|Thailand Open||A||2R||SF||QF||NH||NH||QF ('20 I)|
|1R||W||W ('22 II)|
|Singapore Open||A||1R||2R||NH||A||2R ('19)|
|Indonesia Open||A||QF||NH||1R||SF||SF ('22)|
|Chinese Taipei Open||SF||W||2R||NH||A||W ('18)|
|Korea Open||A||QF||NH||A||QF ('19)|
|Japan Open||A||1R||NH||1R||1R ('19,'22)|
|Australian Open||A||1R||NH||2R||2R ('22)|
|New Zealand Open||2R||A||QF||NH||QF ('19)|
|China Open||A||2R||NH||2R ('19)|
|Denmark Open||A||1R||A||QF||F||F ('22)|
|French Open||A||1R||NH||1R||1R||1R ('19,'21,'22)|
|Hylo Open||A||F||A||F ('21)|
|Korea Masters||A||F||A||NH||A||F ('18)|
|China Masters||A||1R||A||NH||1R ('18)|
|Superseries / Tour Finals||DNQ||RR||SF||DNQ||SF ('21)|
Record against Year-end Finals finalists, World Championships semi-finalists, and Olympic quarter-finalists. Accurate as of 28 October 2022.