The chance to attend the final game in Sydney on Wednesday, July 14 is being offered as prizes in an online raffle being run by Sternbeck's Real Estate to raise funds for Cessnock District Rescue Squad.

Two prizes are up for grabs, each comprising two gold members tickets, dining in the members' restaurant and reserved car parking.

Sternbeck's Real Estate licensee, James Harvey, said these prizes will give the lucky winners a "once in a lifetime" experience that will be hard to beat.

Mr Harvey said Sternbeck's are proud to have been part of the Cessnock District Rescue Squad business support program for the past eight years but saw the chance to build further on the relationship by putting together this fundraiser.

"They are a volunteer organisation that deliver a vital emergency response service to our community. Unfortunately they receive little mainstream funding and rely on donations and community support to operate," Mr Harvey said.

"Be it motor vehicle accidents, storm damage, animal and human 'compromised circumstances', you can be assured that our angels in overalls will be there for us at those times when we need them most."

Only 300 tickets are being sold at $10 each - meaning there's a one in 150 chance of winning.

Tickets can be bought at rafflelink.com.au/state-of-origin-iii. The raffle will be drawn on July 9.