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John Macionis
United States
Personal Bests
Best times from available individual swims and official relay lead-offs. Career coverage may be incomplete.
400 Freestyle
1936 Olympic Games Berlin · Meet 1–16 Aug 1936
1936 Olympic Games Berlin · Meet 1–16 Aug 1936
—4:56.40All Results 2 swims · 1 meets
Meet dates describe the competition. Race dates are shown per swim where available.