Note that if, for example, the N/S pair on one table scored points for the board and the E/W pair on the other table also scored points, then the point difference is obtained by adding the two point scores.

In matchpoint scoring each contestant is awarded, for scores made by different contestants who have played the same board and whose scores are compared with his:

• two scoring units (matchpoints or half matchpoints) for each score inferior to his,
• one scoring unit for each score equal to his, and
• zero scoring units for each score superior to his.