By using this website you agree to our cookie policy


Event details
IconSuggest an edit

See any improvements? Be the first to make this page better.

Take part in the ultimate Welsh triathlon from Abersoch to Snowdon's summit and back. Great for endurance-sports lovers, the route starts from the iconic beach with a 1.5km sea swim before a 50km cycle to Snowdon for a quick scramble up and down, then a 50km cycle back, finishing back on the beach.
C-19 Plan
Sensation Group has confirmed that this event will be going ahead as planned on Saturday 5th Sep 2020 in accordance with the COVID-19 safety measures. Learn more

How to enter the The ROC

  1. The ROC

    Triathlon: Swim 1.5km, Bike 100km, Run 12km
    Event passed
  2. ROC Mini Trail 4.6

    Run 4.6km
    Event passed

The ROC routes

Covering 115KM and climbing a total of 5,825ft, the ROC is a challenge to be contended with for any budding endurance athlete. Find out more about this once-in-a-lifetime race that tracks from sea level to the peak of Wales highest mountain, and back again.

Swim 1500m:

This epic challenge begins at Abersoch Beach where athletes will swim out toward Tudwal's West Island, round a buoy and then swim parallel to the beach to SCYC. From here, you will round two more buoys before heading back to the beach.

The transition will be a 50m run up the beach.

Cycle 50KM (out):

Get ready for your first cycle stage - this 50KM route out toward Snowdon will take you along scenic, quick open road sections as well as formidable technical sections.

Snowdon Run (6KM each way):

The Watkin Path is arguably the most scenic route to climb Snowdon and boasts an immense history. The ascent is nicely progressive and will culminate in a steep scree section close to the summit.

Once at the summit, take in the epic panoramic views before a rapid descent of the course.

Cycle 50KM (back):

A final 50KM cycle will take you back to Abersoch, with plenty of open roads and epic views along the way.

Beach Run 1KM:

You've made it, this final 1KM run will be the glory lap along Abersoch Beach and you will cross the finish line in style.

THE ROC Mini Trail:

Kicking-off before the return of the ROC competitors, this mini trail will head out along the sand towards Bwlchtocyn, through the sand dunes and onto lots of tracks that wind through the golf course, along bridle paths up steep trails and back down again round to Abersoch beach to the finish.

Runners will experience the same exhilaration as the ROC competitors when they cross the stunning beach finish line.

Event Details

What’s Included
  • Bespoke ROC finisher's medals
  • Water
  • Snacks (chocolate and bananas)
  • Refreshment stations
  • Chip timed
  • £1,000 prize money
  • Heated marquee
Raceday Logistics


0740: Safety Briefing

0800: Race start

1130: THE ROC mini trail

1200: Snowdon 4KM cut-off

Please arrive at least 45 minutes before the race start time.

Registration will take place the evening before the event - more information on this will be sent to entrants.

Kit List
  • Full waterproof body cover of hooded jacket and trousers (we recommend with taped seams)
  • Hat/buff
  • gloves
  • Water bottle / carrier
  • High Energy Snacks
  • Foil Blanket
  • High Factor Sun Cream
  • Appropriate running/trail shoes
  • Change of clothes (optional)
  • Wetsuit
  • Helmet

Spectators are welcome to accompany those competing in the race and the Abersoch Beach finish provides a great vantage point for supporters looking to cheer on their friends or family.

While the athletes are out on the cycle or run, spectators can explore this scenic village for themselves.


If you are interested in volunteering at this event, then please get in touch with: [email protected]

Frequently Asked Questions

What do I receive at registration?
You will receive a bag at registration that your mountain kit goes into. This is taken to T2/T3 at the foot of Snowdon ready for when you arrive there during the race.
Is there a cut-off time?
All competitors must be at least 4KM up Snowdon by 12 noon. If you have not made it to this stage, you will be instructed to turn around and complete the course from here.
Is there an age limit?
All competitors of The ROC must be at least 18 years old on race day.
Are wetsuits mandatory?
Yes, wetsuits must be worn for the swim discipline.
Where can I find results?
Results will be uploaded soon after the race ends. They can be found here:
What does team entry entail?
Teams can be made up of either 2 or 3 competitors. With either all three members completing one section of the the race (swim, cycle or run) or one member completing two. Please ensure you provide sufficient team details at checkout.

The ROC weather forecast

Partly cloudy throughout the day.

Predicted highs
Predicted lows
IconModerate breeze possible, up to 16mph

Meet the organiser

Are you the organizer? Claim this page

Unique races in stunning locations with a memorable atmosphere.



The ROC reviews

There are no reviews for this event yet. Raced here before? Be the first to review this event.

How was The ROC?

IconSomething missing?

We're rebuilding our event pages and would love your input. Please suggest anything you would like to see on this page.

Get race results and photos

This event has passed. Congratulations to all the participants. Get race results and photos.

© Let's Do This 2020