Bill Cooksey, who served in the RAF between 1941 and 1951, covered the 13.1 mile course from Newcastle to South Shields with the aid of walking companion Gavin Iceton in five hours and 41 minutes.
The centenarian had previously completed 10 miles a day for 10 days for his 100th birthday and cycled 1,000 miles for his 101st birthday, and took on the challenge to support the County Durham and Darlington NHS Trust.
“I’ve always wanted to do it,” MR Cooksey told ITV ahead of the event. “I’ve been up here 30 years and always walked, and when I heard about the Great North Run I thought ‘I’ll be able to do that surely,’ because there’s the additional impetus of the NHS.
“Actually I don’t think I would have done it if it wasn’t of benefit to the NHS.”
The Great North run was hit by torrential downpours after a week of heat in the United Kingdom.
Some runners were forced to walk home after flash flooding hit roads and the Tyne and Wear Metro system.
Mr Cooksey, though, managed to survive the conditions to complete his challenge and raise more money for the NHS. “I am glad I have done it,” he said to the Daily Mail. “I wish we didn’t have to go through all that rain - but we did it.”
Pat Chambers, charity development manager at the trust, added: “What a hero Bill Cooksey is.
“He continued walking through a thunderstorm to become a record breaker completing it in just over five hours 40 minutes. We are so proud of him.”
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