Aaron Chia and Soh Wooi Yik in the final. At the 2018 Thomas Cup, Ahsan with Indonesia men's team failed to win the title after losing out to China 1–3 in the semi-finals. In July, the duo won their first World Tour title in the Singapore Open by beating Ou Xuanyi and Ren Xiangyu of China. In the rest of 2018 tournaments, Setiawan and Ahsan best results were being semi-finalists in the Denmark, Fuzhou China, and the Hong Kong Opens. The duo qualified to compete at the World Tour Finals, but at that tournament, they were eliminated in the group stage. He and his partner ended the 2018 season ranked as world number 9. 2019: Second All England title and third World Championships title Ahsan and Setiawan were one of the most dominant pairs in the 2019 season, where they entered 11 finals and became the first men's doubles pair to win 3 major titles in a year. Their achievements started at the Indonesia Masters, when the duo finished runner-up to their junior compatriot Marcus Fernaldi Gideon and Kevin Sanjaya Sukamuljo. The first victory came from the All England Open, when they defeating Malaysia's Chia and Soh in the final. This was their second All England title as a pair. They then lost in the finals of the Singapore Open to Takeshi Kamura and Keigo Sonoda of Japan. Ahsan and Setiawan captured their second World Tour title of the year in the New Zealand Open when they beating Japanese pairing of Hiroyuki Endo and Yuta Watanabe in a close rubber games. Ahsan also participated in his sixth Sudirman Cup, and took the bronze medal after Indonesia being defeated by Japan in the semi-finals. In July, they reached two finals in the Indonesia and Japan Opens and come off second-best to Gideon and Sukamuljo in both tournaments. In late August, Ahsan captured his third World Championships title. He and his partner, Setiawan, won the BWF World Championships, defeated the up and coming Japanese duo Takuro Hoki and Yugo Kobayashi in the final. These results also took them to move up to second place in the BWF rankings. They were again confronted by the youngster Gideon and Sukamuljo in the final of the China and Denmark Opens. Ahsan and Setiawan have never won a match against Gideon and Sukamuljo in the last 5 meetings in 2019. They also suffered losses in the