A family of 15 siblings today wearily trudged their way into the record books after completing the Dublin City Marathon.
The world-beating feat by the O'Donoghue clan from Birr, Co Offaly helped fundraise more than €40,000 for Down Syndrome Ireland.
The eight men and seven women, who are aged from 32 to 52, immediately entered the Guinness World Book of Records.
They had to finish in under eight hours to beat the previous record of 12 siblings and held by a US family.
Cronan O'Donoghue was first over the finish line at Fitzwilliam Square followed by Willie, Kieran, Theresa, Joe, Pat, Robert, Mary, Margaret, Noel, Adelaide, James, Brenda, Kevin and Louise.
Louise said: "Cronan came in first in about 4:15. Fantastic. We are so proud of him and proud of everybody."
The 28th annual Dublin City Marathon saw almost 11,000 athletes taking part.
Defending champions Russian athletes Aleksey Sokolov and Alina Ivanova both retained their titles.
Aleksey Sokolov crossed the line in a course record of 2:09:07.
Welsh athlete Richie Powell retained his wheelchair title while Michael O'Connor of Galway and Tullamore's Pauline Curley were the best-placed Irish athletes.
Race director Jim Aughney said; "We're delighted with the number of entries, particularly the number of Irish competitors."