Late on June 24, organisers unexpectedly announced the cancellation of the event, which had been scheduled to take place in Ho Chi Minh City.
In a statement, organisers said the fan meeting could not proceed as planned because of "force majeure" circumstances.
"We sincerely thank all audiences who looked forward to the event and arranged their valuable time and personal plans to attend. This announcement is deeply regrettable and beyond the expectations of the entire organising team. We hope for your understanding," the statement said.
No detailed information has yet been provided regarding ticket refunds. Ticket sales on the event's official platform had already been suspended on June 22.
The announcement triggered hundreds of comments from disappointed fans, many of whom criticised the organisers for what they described as unclear planning and weak communication throughout the promotional campaign.
The cancellation has also affected international fans who had already purchased airline tickets and booked accommodation to attend the event.
A representative fan page for the Running Man community in Vietnam suggested organisers consider relocating the event to a smaller venue.
"Even if it is difficult, we hope the organisers can reconsider and move the event to a smaller location. That way, more tickets could still be sold and the event could go ahead," the fan community wrote.
Ticket sales began in early June, with organisers announcing a line-up that included Running Man cast members Jee Seokjin, Yu Jaeseok, Kim Jongkook, Haha, Song Jihyo, Yang Sechan and Ji Yeeun, alongside special guest duo Mighty Mouth.
The fan meeting was scheduled to be held at Saigon Riverside Park in Ho Chi Minh City.
Ticket prices ranged from VND 1 million (approximately USD 38) to nearly VND 5 million (approximately USD 191), with all tickets initially offered as standing-room admission. Following feedback from fans, organisers later added seated areas for higher-priced ticket categories.
However, ticket sales reportedly progressed slowly, while updates on the event's official Facebook page remained limited, contributing to a promotional campaign that failed to generate the expected level of public interest.
