Finally, look at the third diagram. There, the port end of the line is favored. Gambler is trying to port-tack the fleet, while Conrad is cautiously setting up for a start on starboard tack at the pin. Gambler has positioned his boat and timed his run at the line perfectly. The starting gun is fired while the boats are at Position 2, just before Gambler’s bow crosses the line. If Conrad holds his course, Gambler will cross ahead with no need for Conrad to take avoiding action. Conrad was reaching below the line on starboard tack, intending to head up at the start. However, if Conrad were to luff immediately after Position 2, there would be no way that Gambler could keep clear without hitting the mark. Therefore, such a luff by Conrad would break Rule 16.1. Conrad’s cautious approach has backfired. Now, to avoid breaking Rule 16.1, he is forced to hold his course until Gambler has crossed ahead. At that point, Conrad will probably have to jibe around below the line and make a late and risky approach to the line on port tack. The lesson here is clear. If you are trying for the pin-end start on starboard tack and you see a boat setting up for a port-tack start, you should slow up so that, at the gun, you are far enough from the pin to enable you to luff without depriving the port-tack starter of room to keep clear.