Kristof Milak of Hungary won the 200-meter butterfly at the world swimming championships, breaking Michael Phelps' 10-year-old world record.

Kristof Milak of Hungary celebrates after setting a new world record in the Men's 200m Butterfly Final on day four of the Gwangju 2019 FINA World Championships at Nambu International Aquatics Centre on July 24, 2019 in Gwangju, South Korea. (Photo: VCG)

Milak touched in 1 minute, 50.73 seconds on Wednesday to lower the mark of 1:51.51 that Phelps set at the 2009 worlds in Rome during the height of the high-tech suit era.

The 19-year-old swimmer became the first teenager to win a world title in the event since Phelps at age 18 in 2003.

Chad le Clos of South Africa took out the race under world-record pace through the first lap before Milak gained the lead after 150 meters.

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