Temporary teams get a level from both players' ratings, and yours moves with the
team's result — faster if your rating is less reliable, slower if you're a steady regular.
When you play in a temporary team — during events or open matches — a team
level is calculated as a weighted average of both players' individual ratings.
Whether your own level goes up or down depends on how the team performs.
Your individual rating may be adjusted more —or less—than your partner's, depending on how reliable your current level is. The play level of new players, inactive players, and inconsistent performers are less certain, so they adjust faster. Ratings for regular players with stable performance will adjust slower.