Nagoya Asian Games: Japan's 17-Year-Old Sensation Wins Gold! Daikai Shin Breaks 200m Breaststroke World Record

At the swimming finals of the Asian Games held in Nagoya, Aichi, exciting news emerged in the men's 200-meter breaststroke event. Daikai Shin, a 17-year-old rising star competing in his first Japanese national team appearance, won the gold medal with an astonishing time of 2 minutes and 4.83 seconds, simultaneously breaking the world record of 2:05.48 previously held by China's top swimmer Qin Haiyang.

According to Japanese media, this marks the first time since Watanabe Ippei in 2017—after a seven-year gap—that a Japanese swimmer has reclaimed the men's 200m breaststroke world record. Highly anticipated, Daikai Shin followed up his gold medal win in the 100m breaststroke on the 21st by launching a full-speed start in this race and maintaining his lead through precise pacing, ultimately securing first place in a dominant performance.

His new record surpassed the old one by nearly 0.65 seconds—an impressive margin. In March, at the Japanese National Championships, Daikai became the youngest swimmer ever to achieve a triple crown in breaststroke events (50m, 100m, 200m), setting a new historic benchmark. He was subsequently selected for Japan’s senior national team for the first time. In August, he made his international debut at the Pan Pacific Swimming Championships in the United States, where he earned two individual medals. In fact, as early as July 2025, when Daikai clocked 2:06.91 at the Kinki High School Championships, observers were already stunned by his performance, hailing him as a 'monster rookie' capable of challenging not only Japan’s national records but also the world record.

The men's 200m breaststroke has long been a traditional stronghold for Japanese swimming. The last athlete to make a global impact was Kosuke Kitajima, known as the 'King of Breaststroke,' who achieved back-to-back double gold medals at the 2004 Athens Olympics and the 2008 Beijing Olympics. Since then, Japanese swimmers such as Sochi Yamaguchi and Ippei Watanabe have broken world records, and now this highest honor has been passed to 17-year-old Daikai Shin.

Daikai Shin’s emergence has shocked many elite swimmers in Europe and America. Léon Marchand, the French swimmer who won four gold medals at the Paris Olympics, admitted, 'He’s terrifying! Competing against someone like him is exciting, but also puts immense pressure.'

After the race, Daikai expressed his emotions, saying, 'Before the competition, there was an unexpected incident, and I briefly thought I might not be able to participate. But thanks to everyone’s full support, I was able to achieve this time—I’m truly happy. To deliver such a performance at a major event hosted in Japan feels absolutely incredible.'