Dublin Marathon Vows Lifetime Bans for Runners Caught Swapping Numbers

The organisers of the Dublin Marathon have issued a strong statement warning runners that number swapping is now grounds for automatic disqualification and future bans.

The practice, which involves transferring a race bib to another person outside of the official transfer window, has become increasingly common in recent years. Marathon Event Management DAC, who oversee the Dublin Marathon and the wider Dublin Race Series, say it has reached a point where it threatens both safety and fairness.

“Swapping or transferring your race number to another individual outside of the official transfer window is strictly prohibited,” the statement reads. “This condition was clearly outlined and agreed to by all participants during the application process.”

Organisers cited two main concerns: health and safety, and the integrity of results. If a runner collapses or requires medical attention, incorrect bib information can delay emergency response and put lives at risk. Meanwhile, unauthorised swaps have led to issues in the results database, including instances of male runners using female entries and skewing category outcomes.

From this year, the Dublin Marathon will operate a zero tolerance policy. Anyone found selling, transferring, or using another person’s bib outside of the official window will be disqualified and banned from all future events organised by Marathon Event Management DAC, including the Dublin Marathon, the Dublin Race Series (Fingal 10K, Frank Duffy 10 Mile, Dublin Half Marathon), and the new Dublin City Half Marathon.

All disqualified results will be fully removed from official records, and organisers confirmed they will not make retrospective amendments to results or names.

The message is clear: don’t take the risk. The marathon is asking for runners’ full cooperation to “protect the safety, integrity, and fairness” of Ireland’s biggest road race.