The 2018 BWF World Championships were held at the Nanjing Youth Olympic Sports Park in Nanjing, China, from July 30 to August 5, 2018. It was the 24th edition of the BWF World Championships. Japan's Kento Momota won men's singles, Spain's Carolina Marin claimed her third women's singles title, and China's Zheng Siwei/Huang Yaqiong won mixed doubles, while Li Junhui/Liu Yuchen won men's doubles, and Japan's Mayu Matsumoto/Wakana Nagahara won women's doubles.
The 2018 BWF World Championships officially commenced at the Nanjing Youth Olympic Sports Park in Nanjing, China, with first-round matches across all five disciplines. The tournament featured 48 players in each singles discipline and 48 pairs in each doubles discipline.
The quarterfinals were held on August 2, with top players including Kento Momota, Shi Yuqi, Carolina Marin, and P.V. Sindhu advancing to the semifinals across their respective disciplines. Notable results included Momota defeating defending champion Viktor Axelsen in the quarterfinals.
The semifinals took place on August 3. In men's singles, Kento Momota defeated Chou Tien-chen and Shi Yuqi beat Chen Long, setting up an all-Asia final. In women's singles, Carolina Marin defeated Akane Yamaguchi and P.V. Sindhu beat Sayaka Sato to set up a rematch of the 2017 final.
Spain's Carolina Marin defeated India's P.V. Sindhu 19-21, 21-17, 21-15 in the women's singles final to claim her third World Championship title, having previously won in 2015 and 2016. She became the first woman to win three world badminton singles titles.
Japan's Kento Momota defeated China's Shi Yuqi 21-13, 21-11 in the men's singles final to win his first World Championship title. This victory marked a remarkable comeback for Momota, who had been suspended from competitive badminton for over a year due to a gambling scandal in 2016.
China's Li Junhui and Liu Yuchen won the men's doubles title, defeating Japan's Hiroyuki Endo and Yuta Watanabe in the final. This was China's first men's doubles world title since 2011 when Cai Yun and Fu Haifeng won.
China's Zheng Siwei and Huang Yaqiong defeated compatriots Wang Yilyu and Huang Dongping 21-17, 21-19 in the mixed doubles final, securing China's only other gold medal of the tournament alongside the men's doubles title.
Japan's Mayu Matsumoto and Wakana Nagahara defeated compatriots Yuki Fukushima and Sayaka Hirota 21-19, 21-17 in the women's doubles final, marking the first time a Japanese pair won the women's doubles title at the World Championships since 1977.