Fencer (or anyone who knows lol), where do the BKR's of Teams come from ?

I thought it was an average of the signed on players, but it appears not

I was just asked this question in the Madhouse, and that would have been my answer, as i thought a while ago there was a suggestion which i seconded that Team BKR's should be worked out on Team performance in Tournaments & Challenges Matches (which would make more sense).

Anyway, as i was asked this i thought i would check. Looking at the Madhouse ones, our Anti Chess Team is our highest rated (1806). Now i DO NOT have an Anti Chess Team at present, so it can not be an average of those players as they are not any.

So i looked back at past results, we have not played and Team Challenges, and only played ONE Team Tournament. So i averaged those players that took part in that, and thats not the answer.

So, where does it come from ?

I have checked a couple of other Teams and the same applies, so i guess it applies to all.