Up to 12,000 people took part in the inaugural Dublin City Half Marathon, which took runners across the city centre and the north side of the capital.
Killian Mooney of Dundrum South Dublin Athletics Club has crossed the Dublin City Half Marathon finish line with a winning time of 65 minutes and 40 seconds.
"It was amazing, I loved it. Running through the city, past Croke Park, was so enjoyable," he said.
Mr Mooney added: "The support was amazing the whole length of the course, even on the coast road there were lots of people giving me cheers.
"I've had a few wins in the last few years, which have been great, but this is definitely my biggest so far."
Mr Mooney said he has run a few races recently and is going to "take a bit of a break from racing" before building up again.
"My plan at the moment is to do mountain running in the summer and a few road races as well," he said.
Nichola Sheridan from Bohermeen AC in Co Meath was the first woman over the finish line with a time of 77 minutes and 59 seconds.
She said the crowds were amazing and she was "delighted to get the win".
"The atmosphere was unbelievable...it was a really good course, well organised," she said.
Ms Sheridan dedicated her win to her sister, saying that she had to leave early from her hen party yesterday to prepare for the race.
"I'd my sister’s hen yesterday so I had to do an Irish goodbye there - so shout out to her because I don’t think she was too impressed I had to leave!"
The new event began at 8.30am this morning on O'Connell Street in the capital.
Organised by Irish Life Dublin Marathon and Race Series, in partnership with Dublin City Council, the 21km course took runners out to the north of the city and will finish back in the city centre.
The route passed through Ballybough, Whitehall, Killester, Howth Road, Raheny, St Anne's Park, Clontarf, Fairview Park and Seville Place before finishing on Guild Street.
A prize of €13,500 will be shared between the top five finishers in each category.
Tickets for the event went on sale in January at a price of €68 each and sold out a "couple of hours", according to the organisers.
The €68 entry fee includes a finisher's T-shirt and medal.
If the new event proves successful, organisers are hoping to expand the list of entrants for the next edition of the race.
There were a series of road closures in the city centre and parts of the north side but most are now lifted, with only a handful still in place around the finishing area until later this afternoon.
