NOT even cancer could stop Raceview mum Lyn Farrier from running in the Gold Coast Airport Marathon.
After being diagnosed with thyroid cancer last year, the 39-year-old postponed her life-saving surgery so that she could take part in the gruelling race.
For almost two years, Ms Farrier and her son Kyle, 10, have been competing in various long-distance running events to raise money for cancer research.
"The fundraising endeavour was my son's idea, after my father died from cancer in 2012," Ms Farrier said.
"We've spent a lot of time training together...I've been running about 60 to 80km a week in preparation.
"In doing this kind of exercise, I've lost about 20kg and Kyle is now winning races in under-16 groups."
Ms Farrier, who works at RAAF Base Amberley as a heavy-vehicle mechanic, said it had been her goal to run a marathon before she was 40.
She said it was a blow to be diagnosed with cancer, but was determined not to give up.
"Fortunately the doctors said it wouldn't be an issue if I delayed my operation for a few months," the mum of two said.
"I've had cancer before when I was diagnosed with Hodgkin's lymphoma at the age of 14.
"When you're that young, you don't really grasp the seriousness of the illness, you just get on with it and go to hospital when you're told. This time, I have Kyle and a two-year-old daughter so I'm more worried about them than myself."
Through their fundraising challenge, the mother-and-son team has generated more than $3000.
They've also registered in the Suncorp Bank runPositive program which encourages people to share their stories for why they participate in events.
For more information visit runPositive.