Help Understanding Free Game Rank and Percentiles

[msheald]

Hello! In order to improve my play with robots, I was curious about scores of a recent day-long 8-hand free robot game, so I brought up the scores of the player with the highest score so that I might understand how he scored 85% overall.

 

I am confused about the scores, and I would appreciate help understanding how percentile rank is calculated.

 

On the first board, he bid 3NT, making 3 with a score of 400 point, ranking 92.16%

 

I bid 3NT making 4 for 430 points, and my rank was 79.21%

 

On board 6, he bid 2 spades, making 3 for 130 points and ranking 70.1%

 

I bid 2 spades makes 3 for 130 points and ranking 59.94%.

 

I am not sure why my percentile was so much less than his since it appears that I was as good as or better than his scores on these two hands. It looks like I am not interpreting the results and/or percentiles correctly, and I would appreciate guidance. Best regards.

 

Mike

[smerriman]

In daylongs, not everyone plays the same hands. It's an anti-cheating measure; otherwise someone could just play twice with a second account. The person you compared with would have gotten their results on different hands, and it was just a coincidence they were in similar contracts.

 

Each hand is only played by a smaller subset of entrants, so you can still get a duplicate score for each hand individually. You can click through a particular one of your own scores to see how others actually did that on that board, which is where your board's percentage comes from.

 

But the overall ranking which averages your 8 results is a bit meaningless since it depends on whether you're dealt lots of flat hands or not where you have no chance of scoring much more than 50%.

[msheald]

Thank you!

 

Mike

[schlaks]

You can play a lot of free clocked tourneys with same boards, like this (Daily, every hour, from 5:15 AM until 8:15 PM US Eastern Time).