Release 2.19m

There is a scam email being sent to ACBL Unit Board members and possible any Unit member,  requesting money be sent on behalf of the unit.  Delete!

Unit 360 Board

Next meeting, Thursday, January 10,  3:45.


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D17 Buzz

Check the Buzz for what's happening in District 17.

D17 Scorecard

D 17 Scorecard

D17 Scorecard is now a digital only publication. Until now it arrived in your mail as a newspaper. In a lot of ways it is now much easier to read. You can skip to any article that interests you. It is completely portable, so you can read it on your computer, tablet, or cell phone.

District 17 now has both an Apple and Android "app" for ScoreCard.  Load this free application and get instant access to the current edition of ScoreCard, the D17 bi-monthly magazine.


Snow Closures

The Bridge Center closes with D11 School District.

Click for information.

Power Ratings

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Go to Power Ratings

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What is a Power Rating (PR)

Chris Champion

           Let me start with the definition of a Power Rating.  Let's say you could clone yourself and you would be partners.

          A Power Rating is your average game percentage when you are your own partner and you play against average opposition.

         To get from your real average game percentage to your Power Rating, I first adjust your average game percentage to show what it would be if you had played against average opposition.  This is the DOD number.  If your average opposition had a Power Rating of 52, and you played at their level, you have a PR of 52.  However the way bridge is scored, you would have a 50% game.  So a DOD would be 2, and this is added to your average game %, what ever that is.

         Now I split your adjusted game % between you and your average partner.  You are 1/2 of this game %, but the split is not 50/50.  The split is the same ratio as the ratio between your overall PR, and your average partner's PR.

        1/2 PR + 1/2 Part = % + DOD


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Go to Power Ratings

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