The Performance Report

Understanding the Performance Report

[This article is "paged."  There is a Table of Contents to the right where you can click on the page you want, or you can click on All Pages to see them all at once.]

The Performance Report is located at the bottom of normal Results.  It can contain data for a maximum of the last 50 sessions played at the Club, which is about 6 weeks.  Only games scored at "match points" are included -- other games, such as Swiss Teams, are not.  All match point games are combined into one Report.  (Match points are basically "how many pairs in the game did you beat," and are how normal Club games are scored.  Usually, they are just a number, but I converted them to a percentage so they can be compared between games.)


The names for each pair are shown and the Performance is for the Pair, not either player.  The two partner names have been rearranged alphabetically so that the Smith-Jones pair is the same as the Jones-Smith pair. The names column itself is then initially presented in order by that rearranged pair-name.  But see Sorting, below.  If your name is near the end of the alphabet, then most likely you will be shown with your different partners' names shown first.  But see Search, below.

The player names have their "Strat" added onto the end.  This is done according to the Masterpoints they had at the time a given game was included.  So if your Strat has changed since the date shown at the top of the Report, then your name will appear separately with each Strat.

The four Strats' ranges are listed in the Report's heading, but currently are set at 0-299, 300-749, 750-2000, and 2000+.

In the columns (categories of play) the Report shows the average match point and, under that, the number of hands that Pair played in that category.

Sorting -- each column can be sorted ascending or descending by clicking the column heading.  When you do that, the column will be slightly shaded.  The tiny arrowheads will indicate ascending or descending for the sorted column, or neither for other columns.

Some categories of play are cryptic to save space.  "Ubid Decl" stands for "Underbid as declarer" and means making game but not bidding it, or making slam but not bidding it.  As with all the categories, the results need to be taken with a grain of salt -- the defense may have been poor, and the Game or Slam could have been beaten, so may not really be an Underbid so much as an Under-defend -- or the cards all lay just right and making it was unpredictable.  But as the number of occurrences rises, the meaningfulness will also rise.

Near the right side, "Eq," "Fav," and "Unfav" refer to vulnerability.

At the top of the Report, you can Search.  b_200_0_8532791_01_images_2014TDR_Perf_Report_search.pngIf you enter something in the search box, it will show all the pairs where it appears.  So entering your name will show your data playing with all your partners.  Another interesting possibility is entering a Strat, such as [C] with the brackets, to show only pairs in that strat, regardless of the Strat of their partners.  The Strats used here do not correspond to the Strats used in any particular game, but to the number of Masterpoints on file in the Club's computer.

pages.pngThe report is "paged."  At the bottom, you can flip through the pages, or go to any page.  At the top, you can change the number of pairs shown per page.entries.png


The " ° " numbers (converted match points) seldom are higher than 70 or lower than 30.  Since the range of values is fairly small, small differences in this number can be significant if they are for large numbers of hands.

These numbers cannot really be compared between players of different Strats.  While it is possible to beat higher ranking pairs from time to time, it would be highly unusual to beat them regularly.

Even comparing players in your own Stat can be suspect.  Some players play only against people in their own Strat, and others "play up." In contrast to master points, which are "Stratified," match points are not -- so even if you often scratch while playing up, you are unlikely to regularly have games above 50°.

When looking at these numbers, beware of categories with small numbers of hands.  The pair may have received "gifts" or been "fixed."  But when the number of hands is larger, these effects should even themselves out and the numbers will be more useful.

I suggest you mostly look at your own numbers.  Using the "Search" function, located just above the Report, enter your last name.  As you type, the number of rows shown will be reduced until you are all that's left, except for your partners.  If your last name is common at the Club, you may have to keep typing after your last name -- type a space and then your first name.  On the other hand, if your first name is unusual in the Club, you can just use that.  We once had two Joyce Clark's, so they would have had to type a lot -- but one had a middle initial in the Club's computer, so it would have been OK eventually.  (The Club keeps identical names distinct, by hook or by crook.)

In looking at your numbers, I believe the best procedure is to compare them across the columns.  If you find numbers smaller than the others, it means you're getting bad results in that category, compared to other categories.  To improve your game, you should concentrate on the factors that led to that result.

For example, perhaps your "Def." (Defense) category is low.  This might mean you need to brush up on defense, or maybe it means you need to bid higher because your declarer play seems better.

For another example, say your number for "2-level Def." (2-level defense) is low.  What does this mean?  If the number of hands is not small, it probably means you're not bidding higher when the opponents want to play at the 2-level.  (There's a bridge saying, "Don't let 'em play at the 2-level.")  Or maybe you relax and don't defend well when there is no game at hand.  You can decide why your number is low, and take steps to change your behavior.

Or maybe your "Unfav Decl" (Declaring at unfavorable vulnerability) is low.  This might mean that you're not paying enough attention to vulnerability when choosing to bid higher.