Board Game Arena

Allright, thank you. There was something that didn't make sense to me, in fact. I'm confident with the ELO system 1vs1, but I don't know how it works with more player. Can you just tell me in a simple way which passages and formulas should I use in addition to the basic ones of the classic ELO syste...

I'm trying to figure out how the elo system of BGA works. I read this BGA wiki page: http://it.doc.boardgamearena.com/Rating. I can't understand which is the value of "K" in the last formula ( Rn = K.P + (1-K).Rp). Can you help me, please? Thanks!

Is there anyone who could help me?

I'm trying to figure out how the elo system of BGA works. I read this BGA wiki page: http://it.doc.boardgamearena.com/Rating. I can't understand which is the value of "K" in the last formula ( Rn = K.P + (1-K).Rp). Can you help me, please? Thanks!