He completed the race in 4hrs 1min, and said: “It was bittersweet as I was pleased to have completed it, but a little annoyed as I thought four hours was realistic.

“The predicted race temperature of 14C actually turned out to be more like 23C, which meant I hit the wall earlier than predicted.”

However, David was still happy to finish in the top 3,000 out of around 20,000 runners taking part in the event.

He added: “I really enjoyed the day and I am pleased to have done a little bit to support the ALF. I’d like to thank everyone who cheerd, supported and sponsored me.”

There is still time to contribute to David’s fundraising efforts at justgiving.com/fundraising/dave-blainey