Explanation of Scoring in BBO

In BBO you have three ways to score - International Match Points (IMP), Matchpoints, or Total Points.   Because you are playing in BBO and the hands across teams are not the same, you should choose either IMP or Total Points.  IMP is the default in BBO.

What are they? 

• IMP. In teams scoring, using IMP (International Match Point) scoring, it is the amount by which you beat the opposition which is significant. The difference in points is converted to IMPS using the table shown, which is intended to retain rubber bridge scoring but reduce the effect of one large score in a match.

• Matchpoints. In Duplicate Bridge, your score is compared to all other pairs that play exactly the same board (hand) – therefore N/S is only compared against other N/S pairs that have played that board. Our Bridgepad calculates the N/S percent and E/W score will be the reciprocal of that score (100% - N/S %). The Duplicate Bridge scoring system is based on Matchpoints. You get one Matchpoint for every pair you beat and ½ Matchpoint for every pair you tie on each board. This is compared to the maximum Matchpoints possible to calculate the percentage. So, if a board was played 3 times, a perfect score would be 2 points (you did better than both the other pairs that played this board).
• Total Points. Points for each trick required and taken are scored as follows: 20 points in clubs and diamonds, 30 points in hearts and spades, 40 points for trick 7 in notrump and 30 points per trick over trick 7. These points are multiplied by two or quadrupled respectively if the contract has been doubled or redoubled.