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Swimming - David Johnston Jr
United States
David Johnston Jr is a swimmer who competes internationally for the United States. His last result is the 17th place for the men's 400 m freestyle - heat during the World Championships 2023. He competes in 400 m freestyle.
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Resultats
David Johnston Jr - Results
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- 2023
Event Discipline Pos Date 
World ChampionshipsMen's 400 m freestyle - Heat 17 23/07/2023