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Swimming - John Martens
United States
John Martens is a swimmer who competes internationally for the United States. His last result is the 8th place for the men's 200 m butterfly during the National Championships in American National Championships 2014. He competes in 200 m butterfly.
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Resultats
John Martens - Results
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- 2014
Event Discipline Pos Date National Championships - American National ChampionshipsMen's 200 m butterfly 8 06/08/2014