Record Attendance Figures for 2026 US National Championships and Pan Pacific Championships

The William Woollett Jr. Aquatics Center in Irvine, California, is preparing for the biggest swimming events in the US in 2026. According to official data from USA Swimming, the 2026 US National Championships will attract a total of 18,701 attendees, including 809 swimmers. This event is considered one of the most important meetings to prepare for the next Olympic cycle. At the same time, the 2026 Pan Pacific Championships at the same venue will have 13,439 participants, including 275 registrants. These figures show the increasing interest of the US swimming community in domestic and regional events.