The Pac Cup Doubles Tennis Ladder is set up like Davis Cup. This doubles tennis ladder is open to players of the San Diego Tennis Federation (SDTF). Any player may join the doubles tennis ladder as an individual player. When you first join, you exist on the ladder as a player without a partner or “without a team”. After you play your match, any one of the four players involved can submit the score. Doubles teams are formed after the score is submitted, and points are awarded to teams just like in singles. You can exist on the doubles ladder with multiple different partners.