Organisers of the event said a record-breaking 32,000 people signed up to take part in this year’s race.
Ms Elmore, a member of Aldridge Running Club and a previous ultra marathon and a 24-hour running challenge competitor, said she had “had a bit of a tumble” when she clipped a kerb.
“You get yourself up, feel a little bit embarrassed, couple of people help you up and then you shake yourself off then you realise your hip hurts, your elbow hurts, you’ve jarred a bit of your shoulder and then you start getting a little bit emotional,” she said.
“By then, you think to yourself, ‘No, come on, you can do this’.
“I think I was getting emotional because well, you think you’ve still got 18 miles to go.
“It was one of those moments, ‘Well, do I give up, or do I carry on?’.”
After deciding to keep going, she has been heaped with praise in more than 5,000 comments on the Facebook post.