Jans Koster

Netherlands

World record swims in available results

Personal Bests

Best times from available individual swims and official relay lead-offs. Career coverage may be incomplete.

1500 Freestyle

Meet unavailable · 27 Jul 1957

Meet unavailable

27 Jul 1957WR20:03.10

Meet dates describe the competition. Race dates are shown per swim where available.

1500 Freestyle LCM27 Jul 1957

27 Jul 1957——WR20:03.10

1500 Freestyle LCM21 Aug 1956

21 Aug 1956——WR20:22.80