Teammates win or lose together. 1. If one player Concedes, then the entire team loses. 2. If one player Loses, then the entire team loses. 3. If one player Wins, then the entire team wins.
§ 484.6.a Core Rules PDF (officieel)
§ 484 2v2 (Magma Chamber)
§ 484.6 Format: Best of 1. The first team to reach the Victory Score in Points wins the Match.