A captive rover is a rover station whose contest operation is intended specifically or primarily for the benefit of another fixed station. A captive rover might travel to locations in several different grid locators and make two-way contacts only with one specific multi-operator station in the contest. That station benefits from the activity of the rover station, whereas its competition in the contest cannot receive the same potential benefit. A fixed station that is helped by multiple captive rovers can generate a very large score making two-way contacts with only a small set of rovers.