Bmb Logo Header 250
Bmb Club White 30


Bmb Club White 30

Week 0200 : 22nd April 2024



The average of the scores obtained on a board (i.e. add up all the scores and divide by the total number of scores). In most sizes of field, the calculation ignores one or more of the top and bottom scores to give a more representative score. The purpose of calculating the datum is so that you can compare an individual pair’s score with the datum and convert it to IMPs.

As an example, suppose the scores on a board are +1100, +620, +620, +620, +140 and -100. Ignoring the top score (+1100) and the bottom score (-100), the total score is 2000. Dividing this by 4 gives 500, which is the datum.

Back to Glossary

Join the free Bidding Quiz Membership
For Access

The BMB Bidding Quiz is available for free by joining the BMB Bidding Quiz membership. Joining only takes a minute and is absolutely free - no card required.
Join Now