County Councillor Calum Higgins will be running this year's London marathon in aid of Welsh Cancer Charity Tenovus.
Calum, who represents Tycroes, is hoping to raise over £2,000 for the charity.
Calum ran last year's Cardiff Half Marathon in a time of one hour, 43 minutes and 25 seconds, raising more than £400 for Ty Hafan children's hospice.
On facing his latest challenge, Calum said: "I enjoyed running the half marathon so much that I applied for a place in the London marathon.
"Places are very hard to get and Tenovus have offered me a place to run and fundraise for them.
"I have a target of £2,000 to raise and I'm pleased that I have this opportunity to raise some money for a Welsh charity."
Donations can be made in support of Calum's marathon fundraising online via justgiving.com/fundraising/Calumlondonmarathon or by hand delivery at 116 Penygarn Road, Tycroes, Ammanford.
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