Your individual play level is adjusted when you play in temporary teams — with smart adjustments based on your certainty level and the sport you play.
In competitions with changing teams — such as Americano formats and open matches — your individual rating is updated. A temporary team level is computed using a weighted average of both players' individual ratings.
After the match, the change in team level is distributed back to the two players based on their individual variances: players with higher variance (less certainty) adjust more; players with lower variance adjust less.
The weight factor depends on the sport. In tennis and padel, the stronger player receives a smaller weight, because opponents typically direct more balls toward the weaker player.