In order to advance in rank or earna specific qualification insignia such as lead the watch team in the reactor plant, a qualification board is organized with a sailors superiors and qualified peers to test his or her knowledge.
About three years ago, U.S. Squash made a drastic change to its junior ranking system: Instead of being determined by an algorithm that evaluated the probabilities of matches between competitors, they now base rank on the number of points players earn at a tournament.