Liam McHugh, 64, from Castlederg in Tyrone, prepares to run the London Marathon on April 26. He has raised over £400,000 for the Cystic Fibrosis Trust over more than 30 years. McHugh seeks to reach £500,000 with this effort.

The marathon covers 26.2 miles from Greenwich and Blackheath through London to The Mall near Buckingham Palace. Mass participants including McHugh start at 9.35am. The course has an eight-hour cut-off time.

McHugh began fundraising after his daughter Rachel received a cystic fibrosis diagnosis in 1992. He runs to support access to life-saving drugs for cystic fibrosis patients. About 10 per cent of cystic fibrosis patients still lack such drugs, he states.

McHugh has faced injuries and surgeries but continues the challenge. He has run multiple London Marathons. Donations can be made via his JustGiving page.