The Smith family, starting with Brendon's father David Smith 13 years ago, have contributed nearly $2 million in funding to the park.
David said he got involved with sponsoring the park in the beginning for the community.
"We get so many people hammering us for sponsorships, but this was something we could invest money in for everybody in Hawke's Bay to use. I am just pleased that Brendon has continued that on."
Mitre 10 Park CEO Jock Mackintosh said funding provided by the Smith family was a major factor in keeping user costs low.
"People don't realise that we only get 15-20 per cent of income from our users. The balance comes from sponsors, trust funding and the Council."
"The Smith family and the Ricketts brothers of Mitre10 are very substantial funders and without them the cost to users would double," he said.
Mackintosh said the now officially named PAK'nSAVE Hastings Canoe polo centre opened in 2020 and is regarded as the best in New Zealand.
It regularly hosts national events, including the New Zealand secondary school champs which took place at the end of March.
He said the sports fields accommodate football, rugby league, rugby and Touch.
The fields attract 50,000 users per annum and have also hosted large events such as Christmas in the Park.