Women do as well or better than men in ultra distance swimming. See https://www.thecut.com/2016/09/the-obscure-endurance-sport-w...
Much more amazing to me is that this 10% performance difference holds remarkably steady for men and women's performance in a great range of distances, both running and swimming[0].
[0] - https://sportsscientists.com/2007/10/women-vs-men-part-ii-th...
> Women also do remarkably well in ultrarunning.
Yes, a world record is always remarkable in the general sense.
But in this specific context (discussing the coach's claim that women are "more capable of long-distance peak performance"), I wanted to point out that women's ultrarunning world records are not particularly better or worse than women's world records at other distances, even sprints.
Edit: I wasn't expecting my comments here to be so controversial