The 37-year-old took part in the HBF Fit Fan project, which put him up against other football fans in a journey to improve their health and win a trip to the Grand Final.
Mr Stewart has cystic fibrosis and seven years ago received a double lung transplant, making his journey to health even tougher.
But it has not stopped him playing indoor beach volleyball, mixed netball, bowls and training regularly.
‘I was diagnosed with cystic fibrosis a few months after birth, but I was never wrapped up in cottonwool as a child and played plenty of sport,’ he said.
‘I was pretty lucky all through my younger years in terms of CF, mainly due to the hours my parents put in doing my physio each day.
‘Through my high school and university years, I refereed basketball as my job and this kept me fit.’
Mr Stewart said after graduating from university and starting work full-time he became less active and his health started to deteriorate. He was then diagnosed with testicular cancer.
‘My health continued to decline to the point where in 2007 I was told I had less than 12 months to live,’ he said.
‘As a result I was listed for a lung transplant and received that lifesaving call in November 2007, which resulted in me receiving a double lung transplant.’
These days he is doing much better and while it took him a while to regain his fitness, he said it was important that he did everything to keep healthy after being given a second chance at life.
‘I’m doing really well these days, back into an active lifestyle including plenty of travelling,’ he said.
‘I feel healthier than I’ve ever felt before and I’m confident I’ll keep it up.’
As part of the Fit Fan project Mr Stewart played in the AFL9s at Paterson’s Stadium during the West Coast Eagles versus St Kilda game.