Just watching the BBC coverage of the world champs. Commentator said that Katinka Hosszu uses USRPT. May or may not be correct but it would explain why she can swim world class performances every time she swims. The n=1 that doubters keep referring to (Michael Andrew) just became n=2!!
I’ve only read bits and pieces here and there across the internet about her training. I’ve read that she trains long hours between the gym and pool like 6+ hours a day and does stuff like jump rope with an altitude mask for warm up. Lifting, swimming for that many hours, and other dry land exercises are not part of USRPT. She did swim at USC for Salo who is notorious for using a lot of race pace in practice. Not USRPT, but other forms of race pace training. Hosszu is probably on a Salo style program and is absolutely doing race pace work in practice. I don’t think she is doing actual USRPT though.