Japanese teenager Shin Ohashi smashed the men's 200m breaststroke world record at the Asian Games on Thursday, setting a new mark of 2min 04.83sec.
The 17-year-old cut more than half a second off the previous mark of 2:05.48 held by China's Qin Haiyang.
Qin's record had stood since July 2023.
Ohashi had already won the 100m breaststroke gold this week in Tokyo after a dead heat with China's Dong Zhihao.
"My target has always been to break the world record and I'm so happy to have done it," said Ohashi.
"A lot happened before this competition but a lot of people helped me get to this point and I am very grateful to them.
Ohashi finished 3.84sec faster than silver medallist Denis Petrashov of Kyrgyzstan.
The Japanese teen took control from the off and from then it was a race against the clock.
He will now be the man to beat at the Los Angeles Olympics in two years' time.
"My next goal is to win gold at next year's world championships and then go on to win gold at the Olympics," he said.
"I don't want to be satisfied and I want to feel these emotions again."
Previous world record holder Qin did not swim the 200m at this year's Asian Games.
Latest stories
Arts and Entertainment US judge blocks White House ban on CNN, MS NOW, Politico
The Trump administration must immediately reinstate White House access for CNN, MS NOW and Politico, a US federal judge ordered Thursday, after their reporters...
Africa Tigray rebels in 'full-blown' war with govt
Tigray rebels in Ethiopia told AFP on Thursday they were in a state of "full-blown war" with the federal government, as heavy artillery attacks were...
Asia Business Asian markets fall on US-China jitters as leaders meet
Asian markets fell on Thursday as jitters around a high-stakes summit between US President Donald Trump and Chinese leader...