The sentence you re quoting is from a site showing an across-the-board advantage for men, which gets smaller, but does not disappear, as distances increase. Literally every graph on the page shows that men are faster, in both swimming and running events, at all distances. But somehow you managed to read past all of that to find the one sentence that kinda-sorta says what you want to hear.
Impressive.
https://swimswam.com/comparing-mens-womens-records-in-swimmi...