Sunday 3rd October 2021

We are open for entries for our 2021 “Full Irish” & our 3/4 Marathon –  Event date is Sun 3rd Oct 2021

“Full Irish ” Marathon Entries NOW OPEN – Limited to 500 participants

All entries for the 2020 3/4 Marathon event are now automatically transferred to the 2021 event

Your entry for the 2021 event may be transferred for free up to 19th Sept 2021 which is 2 weeks before the event.

We will have a “Full Irish” Marathon in Longwood on the same day as our 3/4 Marathon – Sun 3rd Oct 2021

Details of race routes will follow shortly

We wish to thank everyone for their continued support of our event.

We do look forward to welcoming you to Longwood for our “Full Irish” AND our traditional 3/4 Marathon events on Sunday 3rd October 2021.

Enter 2021 “Full Irish” or the 3/4 Marathon HERE Now

2019 3/4 Marathon Race Results Here

All 2019 3/4 Marathon Race Photos on Irish 3/4 Marathon Facebook Page



2021 Irish 3/4 and "Full Irish" Marathon - Sun 3rd October

We are now open for entries in our 2021 Full Irish Marathon Event to be held on Sunday 3rd October 2021

Strictly limited number of entries available from1st August

All entries for 2020 3/4 Marathon event have been transferred to the 2021 event unless refunds were requested last year

Your entry for the 2021 event can be transferred for free to anyone else you nominate up to 19th Sept 2021.

We thank you for your continued support of our event and we look forward to welcoming you to Longwood for our Full Irish & our regular 3/4 Marathon on Sunday 3rd October 2021.

Irish 3/4 Marathon as Marathon Training

2021 “Fulll Irish” & our Irish 3/4 Marathon now open for entries HERE – Sun 3rd Oct 2021

Entries for our new event, the “Full Irish” Marathon will be limited to 500 participants

The below training information is based round the use of our traditional 3/4 Marathon event as a preparatory event for a Marathon 3 week later and can be used at your discretion

Ideal Time:- Traditionally 2 weeks post Race Series’ 1/2 Marathon & 3 weeks pre DCM

Ideal Distance:- 19.6 miles or 31.6km

Ideal Location:- Easy road access & convenient parking

This is distance recommended for final long training run 3 weeks pre marathon

Many have successfully made the big step from 1/2 to full marathon using our event as their final long training event


2019 Race Results Here

2019 Race Photos Here


Enter 2021 Race HERE

Elite Racers

In 2019 we had record numbers and a new course record (1h 42′ 32″) set by Mark Kenneally just 4 seconds ahead of Thomas Hayes with Eric Keogh and Gary O Hanlon also breaking the old course record.

Mark and Gary went onto to both beak 2h 17′ in the Dublin Marathon 3 weeks later and Eric ran 2h 18′ in Frankfurt 🙂

Ladies winner was Isobel Oakes in 2h 07′ 02″ ahead of Jan Corcoran and Kealey Tidswell


General route for the 2021 Irish 3/4 Marathon is shown HERE.
Total climb over 19.66mile/ 31.65km route is only ~100m
This is ideal as it is ~3/4 of the climb in DCM

In 2021 we again plan to start and finish the event at the Race HQ so simple logistics for participants

Any course changes will be detailed, if applicable, closer to the event

Sunday 3rd October 2021

Our 2021 Irish 3/4 Marathon is based in Longwood, Enfield, Co Meath

This is only ~30 mins from M50 & M7 and ~50 mins from Athlone so easily accessible for all

Sign On Early to secure your entry as early Sell Out is guaranteed

I’ve done a lot of events over the last few years including runs, cycles and adventure races and never have I given any feedback but I felt I had to after this one. I thoroughly enjoyed the race and the organisation and planning put in was second to none! From the parking to registration to the route and the finish line it was excellently organised! I couldn’t fault a thing! I will definitely be recommending it to anyone doing the marathon.

Sarah Morgan

Past Participant

I just wanted to contact you to thank you for organising an excellent event on Sunday last. Everything was top class, from the stewards to water/food stations which provided for a thoroughly enjoyable run

Kieran Flannery

Past Participant

I just would like to say thank you for putting on such a wonderful race today. Everything was so well organized  water station great you could have stopped and had a feast at each one. Stewards very friendly and gave great encouragement and support. I def will be back next year and will bring my running friends too.

Shona Matthews

Past Participant

Irish 3/4 Marathon 2021

Longwood, Co. Meath

ENTER Now To Avoid Disappointment as Early Sell Out Guaranteed