At any sport stacking event Judges are key to the success of the competition. Judges interact with individual stackers, teams and coaches. Judges are charged with following specific guidelines for timing events, and making judgment calls during relay events. Judges have to have a basic concept of Sport Stacking and be trained on the rules that most commonly apply at any Sport Stacking event. The judges' training is an online training program. This training should be completed and reviewed days prior to the sport stacking event. If possible judges should have a final review a day or so prior to the event or for sure on the morning of the event! Gather judges in a confined area and go over some "points of emphasis" then ask for questions to check for understanding and clarification.