Among the 'superhumans' taking part in this year's Belfast Marathon was Ballyclare High School PE teacher James Corry.
James (27) was diagnosed with testicular cancer in January. But just four months later, he has completed the last leg of the relay alongside partner Jenna.
"I felt it tight around mile three but it was great coming up towards the end," he said.
"Jenna tried to beat me as well but there was no way that was going to happen.
"We'd six teams combining 30 people running from the school. It was a really enjoyable day."
James finished his treatment three weeks ago and today he will find out if he's got the all clear.
Not only has he suffered from testicular cancer, but the disease also spread to his lungs. Despite the diagnosis, James said he's looking ahead. "I'm looking to get a full marathon done in the future," he said. "Everyone's so supportive. I'm really looking forward to getting back to work.
"Ballyclare High School have been amazing," added Jenna. "They've been so supportive with everything."
Nearly £5,000 has been raised by James for two charities - Odd Balls, which specialises in testicular cancer, and Macmillan Cancer Support.