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Clontarf is the Flattest Half Marathon & 5 mile in Ireland

 martathon ireland

The above flat line elevation indicates zero hills. Smooth running for 21.1km


     Clontarf is SOLD OUT. There are no more entries available. Thank you for choosing this race. 

     Please don't contact us requesting an entry - we are not allowed to exceed the limit. 

  • Provisional results (when available) click here . If anything is amiss. Please email This email address is being protected from spambots. You need JavaScript enabled to view it.   Subject: Clontarf 
  • Final Race Day details V1-2015-November-Final-Event-Details.pd
  • Race Numbers for Half & 5 mile (click on a file)  Half-marathon-RACE-numbers.pdf     5mile-RACE-numbers.pdf
  • Numbers are done in order by surname. If your name begins with O'/ Mac / Ní  or something like such do a Ctrl 'F' to find your name OR search by first name doing the same. Sometimes people miss spell their names (put gaps in a name). Please check - you will find it. Save your number to your phone ACCURATELY please. If you are collecting a number for another person - you must tell them in advance (defeats the purpose if they come to collect a number that isn't there). Thanks
    Race day details and info on collecting numbers is on the final race day details file above. 


Welcome to Joe Duffy BMW Clontarf half marathon and 5 mile. Back with a bang after the success of November in 2014. We have gone with the same formula which attracted 3,000 walkers, joggers and runners to this flat course in November. It certainly had the big race atmosphere

Cooler conditions and the reward of that 'almost famous' home made soup at the finish line make this a race worth considering. Perfect timing for those who have completed the Dublin Marathon. The training is done - so it could be a half marathon PB opportunity...

The entry fee is reduced to €27 for the half and €18 for the 5 mile. We reduce the price in November by eliminating Training tops (due to popular demand - medals for ALL have been re-introduced. Visual of a NEW medal design will be available shortly)

Run, Jog or Walk (we have a dedicated walking section). Annual SELL OUT event and places are limited. Enter now to avoid disappointment.  

Go out, be active, and most of all enjoy!

The Clontarf Half Marathon & 5 mile team



Event Sponsors

westwood fitness dublin 

westwood fitness dublin


beshoff dublin



eoin ryan coching

kilkin dublin


pure magic

westwoodrunworxerdingerbeschofffiteoinRyan kelkin pureMagic

Ireland's Number 1

"The Clontarf Half Marathon takes part in the nations capital Dublin, it is Ireland's flattest half marathon and entrants take part from all 32 county's and even from other nations. "

- Eoin Ryan, Founder

Photo Gallery

You can view some of the photographs taken from previous events below.

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