Ironman New Zealand organisers have confirmed the Taupō event will now take place on Saturday, March 27.
The iconic multisport race was scheduled to run on March 6, but the re-introduction of COVID-19 alert levels has forced a rethink.
Managing director Dave Beeche says athletes have been extremely flexible and moving the race back ensures much-needed money will be pumped back into the local community.
"This event means a lot to Taupō," Beeche says. "It injects more than $8m a year into the region, we have 2,200 Mercury volunteers join us and $90,000 is donated to community groups."