One Design

One-Design is a racing method where all vehicles or boats have identical or very similar designs or models. It is also known as Spec series. It is heavily used in sailboat racing. All competitors in a race are then judged based off of a single start time. One-Design can be compared with the Development Class, the classic example being the Americas Cup 12-meter class, or to the Box Rule[1] used for example in the TP52 class[2].
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