what rules are used for ELO scoring in 2 vs 2 game ?

[EleaTyrell]

Hello everyone,
I recently have played in a 2 vs 2 players game of warchest, and my team won (we actually had a better experience of the game than both players of the other team) ; however I got my ELO score decreased, whether my partner got his increased, and I wonder if the right way to update the ELO in such a case would not be to combine both ELO scores of the players of the same team, and compare it to the same combination for the players of the other team, in order that both players of one team get the same increase/decrease of their ELO scoring ? Is this case already designed in BGA ? I mean having necessarily 2 players winning and 2 players loosing one game ?

[Tulivuori]

You draw with your team mate,and win/lose to the opponents. Makes no sense but that's the way it is.

[Romain672]

This has been reported since some years: https://boardgamearena.com/bug?id=11297

Normally if it's a normal team game 2v2, your partner should have NOT lose point for his victory. The system should have put that back to 0.
If it's a game where teams are created during the game or something similar, then that could explain while he lost some elo.
But if it wasn't, that look like a bug.

There is no good way to resolve the problem. I'm convinced there is better ways than what bga actually does, but no solution will resolve all problems.

[ChiefPointThief]

Got my vote. The current system is extremely flawed. Is it difficult for them to make this change for team games? Why has this been ignored for years?