The state's Sports and Recreation Minister says he is confident there has been a thorough assessment of security risks at this weekend's Port Macquarie Ironman race.

The minister has announced a multi-million dollar deal to secure Ironman hosting rights for Port Macquarie until 2018.

Graham Annesley said security arrangements this year have been adjusted where necessary in the wake of the Boston Marathon bombings.

"Police are obviously in charge of those matters," he said.

"The local organising committee work very closely with the police and they do a security assessment of any event anywhere in NSW.

"So we're confident that they'll do that and the event will go off without a hitch."

Mr Annesley said hosting the event until 2018 will boost the local economy especially the hospitality sector.

"It brings a lot of people, a lot of visitors to Port Macquarie which helps local business," he said.

"It delivers over 20,000 visitor nights each year.

"It contributes over $4 million to the local economy.

"So all of these people come and stay in hotels and eat in restaurants and drink in bars and shop at local shops so all of that money is in the local community doing benefit for locals."