Wednesday, March 22, 2017

Attempt at comparing MyHeritage test amounts onsite to MyHeritage test Uploads at GEDmatch

I have been curious to compare how my matches at MyHeritage show up(amount-wise) when they are uploaded to GEDmatch.  Today I noticed that I had  three new matches from MyHeritage at GEDmatch in addition to one that I'd had for about a week.  Uploaded MyHeritage kit are those identified by a prefix of the letter H.  That gave me a total of 4 matches to compare the reported amounts from MyHeritage to the matching amount at GEDmatch.  Sadly, I was only able to positively identify one of the matches.  I could not find the other 3 matches among my 89 matches at MyHeritage.  I did a scan of all nine pages and when that didn't result in me finding any of the 3 matches  I did a search for the full names and email user names.  Still nothing.  So then I looked up to the amount shown at GEDmatch + 10cMs nothing that looked like a match despite the fact that most of the users appeared to have used their full name.

Below are the amounts from GEDmatch and the comparison with the one match I was able to identify.  

Below is a screenshot of the last two matches on my My Heritage DNA matches.  They were sorted from Greatest Total Amount to smallest.  Why are matches 2, 3 and 4 not listed?  Is the Total Matching Theshold to make the list 15 cMs?  Smallest amount to be considered a segment match 5 cMs?

More questions than answers.  I did check the DNA Match quality info button, as well as the DNA help files to see if I could find the answer to the above questions but did not see anything listing what the cutoff amounts were to be listed, nor the minimum amount of cMs to be considered a matching segment.  I'll post an update if I figure out the answers. Comments are always welcome.

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