Warehouse stockman Lance Garbutt, 28, Doonside, who is competing in the Sydney Morning Herald Sun Run on February 1, will inspire many people.
He has gone from weighing 200kg and drinking 30-40 litres of soft drink a week to 140kg in two and half years and completed his first ultra marathon (50km) early this month.
After giving up soft drinks, Lance made a bucket list for himself with about 5000 things to complete.
From abseiling, parasailing to bridge climbing, Garbutt has ticked about 800 things off his list.
Garbutt said his fiance, Laura encouraged him to change his lifestyle after learning that his dad is diabetic.
He did this by spending about two hours a day in a gym for five days a week and participating in running and walking events during the weekend.
"I feel good after giving up soft drinks and during exercises in the gym and running in the weekend," he said.
"It made me do a bucket list of things I want to do to enjoy living my life.
"I want to further reduce my weight to 110-115kg as I am about two metres tall and want to do more things including skydiving, driving a V8 Supercar and dancing."
Garbutt said by the time he completed his bucket list he would be able to participate in every running events in Sydney and then every running events in Australia.
Entries are now open: visit www.sunrun.com.au or www.coleclassic.com for more details.