The default score for the winner of a race would be 1 point. However, at any time after the start and before the winner finished, either boat would be allowed to “offer a double” to the other boat. As I’ll discuss below, it would not be logical for a boat to offer a double unless she clearly was in the lead. The boat offered the double (almost always the boat behind) would then, within a short specified time (say, 3 minutes), be required to choose between two options. She could “refuse the double” by retiring, in which case the boat in the lead would score one point and, if that day’s schedule permitted, the boats would immediately return to the starting area to start another race. Her second option would be to “accept the double,” in which case the race would continue with the winner scoring two points. What’s more, the boat that accepted the first double made in a race would have the right to offer a second double at a later time in the race, but the boat that offered the first double would not have the right to offer a second double. If a second double was offered and rejected, the boat that offered the second double would score 2 points; if the second double were accepted, the winner would score 4 points. Obviously a second double would only be offered if, after a first double was offered and accepted, the boat that accepted the first double managed to wrest the lead away from the boat that offered it.