Can’t Make Sense of Y-67 Match
I’ve recently upgraded from Y-37 to Y-111 and while I didn’t find any matches at Y-111, I did have a few show up at Y-67. The closest of these matches is showing up as a genetic distance of 4, but no matter how I try to understand how FTDNA is calculating this value I can’t make sense of it. I‘ve looked at FTDNA’s methodology for calculating Genetic Distance, and following it I’m getting a distance of 5 for this individual. See image
What I am also finding confusing is why they aren’t showing up at lower levels. Based on what I’m seeing they should be a Y-12 match, and if they are a 4 at Y-67 I don’t understand why they wouldn’t also be a 4 at Y-37 and therefore show up.
Does anyone understand what is going on here? I initially started doing my own comparison to see how far the match was from showing up as a Y-111 with the GD threshold being 10 at that level, but then it sent me into this rabbit hole of making sense of the lower level results.