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General => Ancestral Family Tree DNA Testing => Topic started by: Sandgrounder1 on Saturday 14 October 17 11:49 BST (UK)

Title: Gedmatch Genesis - problems?
Post by: Sandgrounder1 on Saturday 14 October 17 11:49 BST (UK)

My top matches on Gedmatch Genesis were generally quite strong but over the last week or so I have had a raft of new "top matches" which are quite poor.  It seems that they are now rating top matches solely on number of generations and ignoring everything else.  Had anyone else noticed this?

Title: Re: Gedmatch Genesis - problems?
Post by: hurworth on Saturday 14 October 17 12:26 BST (UK)

They can only estimate the number of generations which depends on the shared DNA and how it is spread across the chromosomes.  For the kits I manage the best matches are still at the original version of Gedmatch.  The Genesis database is not as large yet.

Title: Re: Gedmatch Genesis - problems?
Post by: Sandgrounder1 on Saturday 14 October 17 12:45 BST (UK)

I have just uploaded to the main site and "strong" matches on Genesis, who have kits on both, don't appear on my matches on the main site!  I assume this is because of the numbers using each as you say.  But it still doesn't explain why a raft of new top matches appear to be weaker than the ones below them.