Pop-up City Triathlon

Lough Cutra Castle
26/27 May 2018

Cholmondeley Castle
23/24 June 2018

The Festival of Endurance at Hever Castle
8 July 2018

Castle Howard
21/22 July 2018

Château de Chantilly
25/26 August 2018

Hever Castle
22/23 September 2018

Schools Roadshow
July 2018

The Series

Lough Cutra Castle Triathlon

Arguably the finest castle in the series – Lough Cutra – provides a fitting backdrop for the curtain raiser of the Castle Triathlon Series.

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Lough Cutra Castle Triathlon

Saturday 26th and Sunday 27th May 2018

This first race of the season sets the scene for a competitive and fun series, hosted within the beautiful grounds and surrounding area of stunning South Galway. What’s more, the race coincides with a Bank Holiday in the UK and it is also the first weekend of the UK school half term, making it an ideal break for sporty families.

All of the races at Lough Cutra Castle kick-off by launching into an open-water swim in the lake, transitioning into a bike route which circumnavigates Lough Cutra itself. The half iron gauntlet cycle takes in the beautiful Burren national park. The event offers not only a chance to race but a festival atmosphere with live music, dancing, children’s entertainment, retailers and food.

Lough Cutra Castle Triathlon

About Lough Cutra Castle

The countryside surrounding Lough Cutra Castle contains evidence of a history dating back to the Irish-Celtic mythology of the Tuatha Dé Danaan.

Old churches, cells and monasteries are prolific in the area, with some of the islands on the lake containing the remnants of stone altars.

The history of the actual estate can be traced back as far as 866 A.D. when the ruined church of Beagh was sacked by the Danes and war raged through the district for nearly 1,000 years.

The Castle itself was built during the Gothic revival period and is idyllically situated overlooking the Estate’s 1,000 acre lake (the largest privately owned lake in Europe), home to the open-water swim of the Lough Cutra Castle Triathlon.

2018 National Series Standard Distance

Sunday 27th May 2018

Earn early National Series points on this stunning course setting you up for a great season ahead. Swim 1.5km in the still calm waters of Lough Cutra Castle, cycle 40k through the Burren enjoying the gentle rolling hills and the natural beauty of the infamous heritage site. Finishing with a 10k off road run around the stunning grounds of the privately owned Castle estate crossing the line to the backdrop of the striking castle.

2018 Super Series

Saturday 26th May 2018

Triathlon Ireland has awarded Lough Cutra Castle the Draft Legal Standard Distance Triathlon on Saturday 26th May 2018.

It’s going to be a Super Saturday at this year’s Lough Cutra Castle Triathlon on May 26th as Ireland’s Cat 1 and Cat 2 top age groupers battle it out in the first event of the 2018 Super Series, the only one in the West of Ireland.

This year Triathlon Ireland has included a Standard distance (the only one of which is being held at Lough Cutra), as part of the Super Series. Now in its 4th year in Ireland, this Super Series caters for the appetite, skill and speed of the fastest athletes, racing on closed roads in a draft legal environment, chasing points. It’s the only series in the country that allows this type of triathlon racing.

ITU 2018 updates: All Super Series athletes must be in attendance for a race briefing before each event, penalties applied for late or non-attendance. There is no longer any exception to the timing penalties relating to drafting. All penalties match the ITU rules.

For a summary of all changes within the 2018 ITU rules, click here.

For the complete 2018 ITU Competition Rules, click here.

Entries are open and have to be made via Triathlon Ireland, please use this button.

2018 Mixed Team Relay Championship

Saturday 26th May 2018

This race format, taking place on the afternoon of Saturday 26th May, will see four person teams; two males and two females, each completing a 250m swim, 5km bike and 1.5km run as part of a tag team.

Mixed Relay has proven extremely popular with athletes of all standards and allows regular age groupers and more advanced athletes to race together. The minimum age requirement for athletes is 15 years. There is no upper limit upper age limit or ability for those taking part.

We are delighted that this event will, for the second year running, include the National Mixed Team Relay Club Championships. The race will be run to ITU standards and all participants must hold a full TI Licence and team members must belong to the same club.

Training Day

Saturday 5th May 2018

We are delighted to offer an Adult and Junior triathlon training and recce day at Lough Cutra Castle on Saturday Saturday 5th May 2018. This event is being held in conjunction with Liam Kennedy, Burren Cycling Club. Approximate timings: 11am – 4pm.

€25 – Swim, Transition, Bike and Run Training
€10 – Swim only

€35 – Swim, Transition, Bike and Run training
 (also included is a Recce of 20K cycle circuit)
€15 – Swim only

Approx timings 11am-4pm

On the same day, we are including a recce (no charge) of the The Gauntlet cycle (90K) beginning at 9am and The Gauntlet run (7K) beginning at 1pm.

All sessions must be pre-booked.

Go long for the Gauntlet

Sunday 27th May 2018

In 2018 Lough Cutra Castle, for the fifth year running will see The Gauntlet, a middle-distance race, push competitors to their limit via stunning 1.9km swim, 96km bike ride and 21km run.

This race distance had a hugely successful launch across the Series in 2014 with over 1000 sign ups. Since then it has gone from strength to iron strength doubling in size with hardened triathletes and newcomers to the triathlon side-by-side on the start line. In 2016 we were proud to host the Gauntlet as part of the Triathlon Ireland Vodafone National Seriesand in 2017 the Gauntlet offered 5 qualifying places in each Age Group for the 2018 ETU European Middle Distance Championships. 

Castle Swim Series

Saturday 26th May 2018

The swim only event provides the choice of three different distances: 5km 2.5km and 1mile (see price table below) and boasts a unique and stunning swim route in all the stunning castle lakes.

The swim described by many triathletes as the ‘best open water swim ever completed’ will now be open to outdoor swimmers as an event in its own right.

One mile leisure and family swim

Enjoy the beautiful setting of Lough Cutra Castle  at your own pace. Swim any stroke you like (breaststroke encouraged), swim and chat with friends as you go around. Don’t worry about how long it takes (however time limit set at 90 minutes), just enjoy it. Under 16s welcome if accompanied throughout by a competent responsible adult.

10K and Half Marathon

Sunday 27th May 2018

Competitors undertake this stunning off road spectator friendly estate loop (1 lap for the 10K, 3 laps for the Half Marathon).  The first 3K of the circuit heads north from the castle lawns hand railing the western shore of the luminescent Lough Cutra Lake (largest privately owned lake in Europe).  Following a system of well worn tracks and paths the route passes through the ubiquitous Deer Park and then into the Carrowcarriff forestry block with its ancient pines and abundant wildlife.  At the northerly most point of the run competitors will pass a well stocked feed station before exiting the wood and hitting a narrow tarmac lane which they will follow for 800m.  A left takes competitors back onto the estate tracks and paths and after crossing a couple of well worn fields runners will emerge onto Black Drive and head south back towards the formal gardens of the estate.  With 1K of the circuit to go, track turns to tarmac at the internal estate drive, and finally runners pass through 2 iconic courtyards before arriving at the Castle forecourt with 1 lap complete! The finish takes place in front of the castle to rapturous applause, well deserved medal and the now famous finish line atmosphere and post-race treats.

NEW! Half marathon and 10K at all our venues (UK, Ireland and France) in 2018. Set on the most iconic and stunning off road, spectator friendly courses. Come join us for the Series.
Stunning scenery & weather for a swim, cycle & run around the estate of Lough Cutra Castle in Co. Galway, Ireland. Well organised & great inspiration from both half ironman distance triathletes and also young kids doing their own triathlon race!
Jason McChesney

Take a look at how our previous triathletes rated Lough Cutra Castle Triathlon via RaceCheck

All Race Distances and Pricing

To compete in the Lough Cutra Castle Triathlon you can enter either as an individual, a relay team of two, or a relay team of three. The Junior and Children’s races follow the same format. Relay entries can be all male, all female or mixed.

Saturday 26th May 2018

Race Name
Race Distance
(Individual / Relay)
Discount Prices
Start time
Super Series Standard (Draft Legal)
1.5km / 40km / 10km
€85 / 125
€77 / 113
Sprint Plus - The Prendergast
800m / 40km / 8km
£95 / 140
£86 / 126
Sprint - The Lady Gregory
750m / 20km / 5km
£90 / 135
£81 / 122
Super Sprint - The Viscount Gough
400m / 20km / 4km
£85 / 130
£77 / 117
Starter Tri - The Castle
200m / 12km / 2km
£70 / 110
£63 / 99
5km Swim
2.5km Swim
1 Mile Swim
1 Mile
Junior (13-15 yrs) - The Teal
300m / 8km / 5km
£44 / 55
£40 / 50
++Mixed Relay
250m / 5km / 1.5km**
£100 (team)
£90 (team)
Family mixed relay
250m / 5km / 1.5km**
£75 (team)
£68 (team)

Sunday 27th May 2018

Race Name
Race Distance
(Individual / Relay)
Discount Prices
Start time
Half Iron / Middle Distance - The Gauntlet
1.9km / 96km / 21km
£220 / 270
£198 / 243
+Olympic / Standard - The Lough Cutra
1.5km / 40km / 10km
£110 / 150
£99 / 135
HALF Marathon
21.1 km
10 km
Children (8-10 yrs) - The Widgeon
100m / 4km / 0.8km
£33 / 55
£30 / 50
Children (11-12 yrs) - The Cormorant
200m / 4km / 1.8km
£39 / 55
£35 / 50

++ Includes the Triathlon Ireland Mixed Team Relay Championship

+ Includes the Triathlon Ireland National Series Standard Distance

*Start times are approximate and shown here as a general guide. These are subject to change. Depending on number of participants, there may be multiple waves for each race distance separated by intervals from15 up to 45 minutes.

**Distance vary slightly at each venue

Entrants will be notified of their wave time via email 2 weeks prior to the event. We advise that entrants arrive at least 1 – 1.5 hours before their wave time. There’s an option to request specific waves during registration. Relays go off in the final wave of their distance.

2017 Results

Congratulations to everyone who took part! We hope to see you next year.

This section will provide you with the 2017 race time results.

Useful information

Preparation for the event

Please download our new Competitor Guide tailored for the event at Lough Cutra that will help guide you through the preparation for the event.

The Competitor Guide 2018
The Gauntlet Competitor Guide 2018
Race licences and certificates

For the sixth year running the Lough Cutra Castle Triathlon will be a Triathlon Ireland Assured Sanctioned Race.

As such we will be receiving assistance from Triathlon Ireland technical officials on the day and in the run up to the event.

On race day, ALL participants of a multi-discipline event are required to present their valid triathlon governing body (eg TI, BTF, FFT) membership card or One Day Licence. This ‘ODL’ must be purchased before the event from the TI website www.triathlonireland.com.


Pre-Race Practice


Lough Cutra Castle – 5th May

Cholmondeley Castle – 2nd June

Hever Castle- 10th June

Castle Howard – 1st July

Hever Castle – 9th September

Approximate timings:

Cycle – 9am

Run – 1pm



Kids Practice Swim – £5
Adult Practice Swim – £10

Practice swimming in the lake the evening before your race. Not available at Chateau de Chantilly and Hever Castle.

How to book: 

  • During the online registration process.
  • Using our Online Shop.
  • Logging onto MyActive and adding these to your entry.
Spectator Offering

The spectator experience at the Castle Triathlon Series has become almost as famous as the spectacular backdrops and classic courses, and has made passing time before your loved ones finish the race a thing of the past.

Travel, accommodation and directions to the venue

Click the link below to find out everything you need to know about all of our venues.

Trophies, prize money and medals

All competitors in all races will receive a medal on completion of their race.

Each 1st place winner will also receive a suitably themed trophy, and sponsor’s prizes for 2nd and 3rd place. There is a significant prize pot on offer for the Olympic and Gauntlet race distances.

Click below to find out more about what we have on offer.

Rules and Terms and Conditions

Please read and understand the general rules, in particular the cut-off times, before competing to ensure a fantastic race for you and everyone else.

Race distances

Race distances

For the absolute beginners and children to the professional triathletes, the Castle Triathlon Series offers a wealth of race distances to suit all levels.

Find out more


Hosted at a selection of stunning and iconic castles across the UK, Ireland and France, the Castle Triathlon Series events all promise an inspirational and memorable race experience.

Find out more

Take part

We pride ourselves on offering a bespoke and tailored offering for all those wishing to take part and grateful for all those who want to be involved on the day.

Find out more


We would always recommend training in preparation for any event, but how much you do, and the style you take is down to you.

Find out more