The Downer New Zealand Masters Games brought 3241 visitors and $3 million into Whanganui in February, organisers say.
Games Trust chairman Leighton Toy said it was "hugely humbling" to see the event supported strongly by local people as well.
"Smashing our objectives for 2021 was a great feeling for the team and trust, especially seeing the benefits the Games brought to Whanganui and knowing we did that collectively as a community," Toy said.
There was a 24 per cent increase in Whanganui participants, a 115 per cent increase in volunteers supporting the running of the event, and a 52 per cent increase in the "upcoming master" category, which was the 30–45-years age group.