A selection of Irish records over standard ultra distances is outlined below. Please note there is a minimum distance or time standard required before a performance is accepted as a national record / best. For example, women's track 24 hours would require a standard of 200km in line with Grade B international selection criteria for outdoor championships. The event must also be an IAU-labelled race or otherwise approved by UltraRunning Ireland for record-setting purposes. Athletes attempting 'inter-city' or point to point records should notify UltraRunning Ireland in advance if they want assistance in having a record ratified - and to verify existing records.
Men - Road
|100 km||7:05:06 hrs||Thomas Maguire||08/10/2006||World 100k||Seoul, South Korea|
|24 Hours||248.392 km||Thomas Maguire||21/11/2009||No Finish Line||Monaco|
|48 Hours*||342.969 km||Eoin Keith||29/12/2012||Across theYears||Phoenix, USA|
|72 Hours||483.189 km||Eoin Keith||29/12/2012||Across theYears||Phoenix, USA|
*The 48-Hour Irish record was a split time in the 72-Hour event.
Men - Track
|50km||2:58:22 hrs||Mick Molloy||28/10/1978||Crystal Palace||London, UK|
|100 km||7:26:11 hrs||Mick Molloy||28/10/1978||Crystal Palace||London, UK|
|24 Hours||235.910 km||Eoin Keith||18/10/2008||Tooting Bec||London, UK|
|48 Hours||401.115 km||Tony Mangan||11/05/2007||Surgeres||Surgeres, France|
Men - Indoor
|24 Hours*||223.133 km||Tony Mangan||16/03/2007||Brno 48H||Brno, Czech Republic|
|48 Hours**||426.178 km||Tony Mangan||16/03/2007||Brno 48H||Brno, Czech Republic|
**Ratified by IAU as current World Record. *The 24-Hour Irish record was a split time in the 48-Hour event.
Women - Road
|100 km||7:52:45 hrs||Helena Crossan||08/09/2007||World 100k||Winschoten, NED|
|24 Hours||229.347 km||Ruthann Sheehan||08/09/2012||World 24H||Katowice, Poland|
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