Lorry driver Mark Welsh will put on his running shoes to help raise cash for a little girl with cancer.
Mr Welsh, of Knottingley, will be one of more than 19,000 runners taking part in the Cardiff Half Marathon on October 5.
The 48-year-old hopes to raise more than £1,000 for Families Against Neuroblastoma in support of Leeds youngster Kendal Middleton Jessop.
Mr Welsh said: “I have met Kendal twice now, she is such a beautiful girl and she has got a special place in my heart.
“When I got into running I thought I would start raising money at the same time so I looked around for causes and someone suggested Kendal.
“I’m a big family man myself, I come from a big family and love kids and it’s great to be able help her out.”
Mr Welsh has so far raised around £800 for the charity, which provides support for youngsters dealing with neuroblastoma and also funds treatment, which is often only available abroad.
Mr Welsh, who started running in 2012 to lose weight, added: “I had never exercised properly until two years ago but I get a real buzz from it now. Events like this are great. I am really looking forward to it.”