All you need are flat soled shoes to wear on court.
Wrestling shoes are flat soled, with a high ankle designed to give suppport to the wearer's lower legs, which bear a huge amount of weight during a wrestling bout.
Granted, he's wearing regular soled shoes (still should have taken them off, especially on such an expensive boat), but he seems to tower over the two.
It is vital that you avoid slick soled shoes and use a quality pair of ice cleats whenever you venture outdoors.
In others, however, the clogmaker was a specialized craftsman, concerned only with making wooden soled clogs.