To keep track of the score in pickleball, most people rely on player memory. To help with this, players will announce the score out loud before each serve. They will also state which server they are (either 1 or 2). For example, if I am the second server and my team is losing 7-4, I would announce "4-7-2" before my serve. Because it is easy to get mixed up when trying to track the score in pickleball, I do recommend using an Apple Watch app or other scorekeeping device to help keep score!