But completing the New York Marathon unearthed a whole new wave of emotions for the south-west export.

The 38-year-old ran to raise money for the EB Research Foundation, a charity which aims to raise funds to invest in science and medical research to find a cure for Epidermolysis Bullosa, a debilitating and life-threatening skin disorder that affects children from birth.

He has raised almost $100,000 for the EB Research Foundation.

The champion forward, who has a close family friend who lives with EB, crossed the line in an astonishing three hours, 14 minutes and 26 seconds,

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Brown opened up to Nova100 listeners and co-hosts Sam Pang and Chrissie Swan about the mental battle he went through.

"I was like, 'S**t I can do this. I can do this. I've got five (kilometres) to go. Toughen up you old prick'," he said.

"Coming up 5th Ave and you're at that point of about eight (kilometres) to go, you're like this is going to get too hard or I can't push through here.

"Doing it for the cause as well, doing it for EB - I honestly, when I was going through the battles with 10 (kilometres) to go I was thinking about the kids that have it and I started thinking about my own kids and (wife) 'Kyles' and then to see you guys and just the joy, I was like s**t I can do this and power home.

"It was such an amazing feeling. I felt like I was doing it for something greater than myself.

"It gave me great strength to finish at the end and to finish strong (even though) I was going through a lot of pain but I thought, 'Bugger it, this is worth it'."

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