Chris O'Brien Lifehouse is a not-for-profit, comprehensive cancer hospital in Camperdown, Sydney.

Riley's late grandfather received treatment at the Lifehouse, prompting him to make the decision, just a couple of weeks ago to raise funds for the centre.

"It was really worth it, our target was $2500, we got that which I was really happy about, I didn't think we'd get it in just two weeks," Riley said.

When donations were tallied on Sunday at the Cowra Bowling Club after the run the total raised came to more than $2800.

The Cowra Bowling Club came on board as major sponsor of the event with Woolworths Cowra and Label Everything Gooloogong also assisting.

Riley said he was appreciative of all the support he received from the three bodies as well as the many friends, family and community who made donations.

"People from all over donated, there were some people I didn't even know."

Asked if he'd do the 41km run again next year Riley said he hoped to.

"After I finished I said I'd never do it again, the way my legs felt, but 12 months gives me plenty of time to recover, and now I know what it feels like.

"The biggest thing was after 30kms, my legs just shut down, I walked a bit, my legs just didn't want to do it," Riley said.

Riley wasn't alone for the entire distance of the run with his father Shane, his brother Angus and friend Kinisha Roweth also joining him for parts of the run. His younger sister Keiley joined in for the final two kilometres.

"There were a few at the Cowra Bowling Club when we arrived," Riley said.

"The Cowra Bowling Club was really good with everything, they were really supportive with recovery after the run.

"The Chris O'Brien Lifehouse did a fair bit as well helping organise the run," Riley said.

Riley and his support team took around four hours to complete the run.