MARATHON runner Mike Tubb is raising funds for St John Ambulance – after volunteers possibly saved his life when he collapsed just yards from the finish.
The 39-year-old, from Cheddleton, is planning to take on the Great North Run in September in aid of the charity.
Mike, a construction manager, collapsed 26 miles into this year's London Marathon in April and was treated for heat exhaustion on the track for 45 minutes by volunteers.
They then stretchered him across the finish line so that he could complete the race in five hours.
His target had been four hours and 15 minutes.
Mike, of Willow Drive, said: "I remember going through the '385 yards to go' sign just before Buckingham Palace, I felt good and started to speed up, but that's all I remember. That's when I went down, on the last bend."
The father-of-three – who has previously taken part in a triathlon and Warwick Marathon – added: "It was 21 degrees on the day and I had missed a couple of water stations which I don't think helped.
"They ripped my top off and stuffed ice all over me to cool my body back down.
"Eventually I started coming round and I had no idea where I was. Because I couldn't remember what I was doing, I started to panic and the monitors started beeping.
"Having heard other stories it's possible it could have killed me if they weren't there to help me. St John Ambulance was absolutely brilliant and potentially saved my life that day.
"I can't thank them enough for their help and support. I'm delighted to run the Great North Run on behalf of such a worthy charity."
Mike's two daughters Danielle, aged 17, Jordan, aged 14, and his fiancee, Dawn Hutchison, were waiting at the finish line completely unaware of what had happened.
Dawn, aged 33, said: "When we found out what had happened I was so shocked because Mike had followed all of the advice and trained for months in advance. Despite what happened I still support him running. I'm very proud of him but sometimes it feels like if I want to see him then I would have to start running myself."
Siobhan Sargeant, St John Ambulance's North East regional fund-raising co-ordinator, said: "Our volunteers are trained to be the difference between life and death and Mike's story highlights the importance of first aid support at sporting events.
"Often it takes a personal experience such as Mike's to bring attention to vital life-saving first aid. We are thrilled to have Mike running the Great North Run for Team St John Ambulance this year."
The Great North Run, which attracts more than 55,000 runners, will take place in Newcastle-upon-Tyne on September 7.