The difference between a great multi-sport event and a confusing one is cohesion. Everything universal to events, registration, marketing, sponsors, food, gifts, the awards, should run as one unified system across all the sports, even though the sport, format, and timing differ. Participants register through one place, the event markets as one event with multiple ways to play, sponsors can activate across sports, and the day ends with one shared celebration. Keep the connective tissue unified and the variety becomes a feature, not a source of chaos.