- Here we see a match who shares 16cM's on the longest segment according to Family Tree DNA, and 18.4 according to MyHeritage. According to Family Tree DNA the total cM's shared are 41. According to MyHeritage the total is 39.3 cMs. These are very typical differences between companies and GEDmatch too.
Here is a comparison of longest segments between MyHeritage and the others: