Swimming_at_the_2019_World_Aquatics_Championships_–_Men's_400_metre_freestyle
Swimming at the 2019 World Aquatics Championships – Men's 400 metre freestyle
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The Men's 400 metre freestyle competition at the 2019 World Championships was held on 21 July 2019.[1][2] The three-time defending champion was Sun Yang, and he successfully defended his title for a record-breaking 4th consecutive victory in the world championships in this event.[3] He became the third man to win an event 4 times at the world championships after Grant Hackett in the 1500 meter freestyle and Ryan Lochte in the 200 meter individual medley.[4]