First-time marathon runner Karen McGrane from Knocklyon, Dublin was "absolutely thrilled" with her performance, coming in at four hours 25 minutes.
"I only started running about a year ago, doing a mile or two and then I decided I would 'up' it," she said.
She found the last mile very tough and when she saw a runner in an ambulance with an oxygen mask, she feared that she might need the same treatment "but definitely the crowd helped."
The mother of four was looking forward to being spoiled for the evening. "I'm hoping I'm going to lie on the couch and get a video and get dinner handed up to me."