When I read that same question I initially thought the same, One Design Dinghy, but then I started thinking about how the Tornado was dropped from the Olympics, and how I didn't want to add any more support for the One Design Dinghy classes in the next Olympics, so I also put Other, but If they had had two more categories, "Racing Catamaran" and "Racing/Cruising Multihull" or some such, I think it would provide them with much more info and provide us with more leverage for a multihull in the next Olympics. I didn't want our numbers to be added to the "One Design Dinghy" classes, which already have too many clases in the Olympics.