Yacht racing is a sailing activity that uses sailing yachts and bigger sailboats as opposed to dinghy racing, which uses open boats. When buoy racing, it might entail a series of races or many legs when point-to-point racing. In head-to-head racing, each yacht races the other one once only. In general usage, a "sailing race" is any race in which the outcome depends on which boat is fastest rather than some other factor such as money or sponsorship. However, in the context of yacht racing, this term usually implies a match race between two identical boats that are raced against each other by the same team in the same venue back-to-back within a certain time limit. A series of such matches constitutes a race series. An example of a race series would be the Vendée Globe, in which one sailor has to complete the entire round-the-world race in one go. The winner is the first across the finish line after 72 hours. This type of race is called a "single-handed race". There are also race series where several sailors take part, like in the America's Cup. In this case, the objective is to win more races than your opponents to win the series.