The International Six Metre class is a class of classic racing yachts. Sixes are a construction class, meaning that the boats are not identical but are all designed to meet specific measurement formula, in this case International rule. At their heyday, Sixes were the most important international yacht racing class, and they are still raced around the world. "Six metre" in class name does not, somewhat confusingly, refer to length of the boat, but product of the formula; 6mR boats are, on average, 10–11 metres long.

Scandinavian Gold Cup is a sailing race held annually for 5.5 metre yachts. It is a nation race, meaning that each participant nation can send only one boat/team. Despite its name, it has been an international competition almost through its entire history, and participating is not limited to Scandinavian nations. The event has been held every year since 1919 making it one of the oldest active sailing trophies.