Challenge Wānaka is the latest event to be cancelled following the move to the Red light setting.
Organisers have this morning announced the popular annual triathlon festival, scheduled for February 19, could not be held at Red.
"The team went through different operational scenarios and concluded that the socially responsible action to take was to cancel the event,'' a spokesperson said.
"As a non-for-profit, community-based organisation, we have had to make this incredibly hard decision for all involved.