Jones o Gymru Anglesey Half Marathon

Please note that start times are approximate and will be confirmed in your Final Instructions 10 days prior to the event.

GPX route

The route is displayed on the map above.

Overview

Now starting from the Anglesey Showground, this fully closed-road course offers fast running flanked by breathtaking views of North Wales’ Eryri (Snowdonia) National Park. It’s no wonder this race has become a firm favourite for so many and earned the title of the UK’s most beautiful Half Marathon.

Description

The Jones o Gymru Anglesey Half Marathon starts and finishes at the Anglesey Showground, a wide-open setting with a spectacular panorama of Eryri (Snowdonia) rising across the Menai Strait. With the Carneddau and Glyderau peaks forming a dramatic skyline, runners set off with one of the most inspiring start-line views in Wales.

From the Showground, the route heads west on the A5, allowing runners to settle quickly into their rhythm on a wide, fully closed road. The early kilometres feel spacious and confident, with long lines of sight and big, open views over rural Anglesey.

From the A5, the course turns north and east towards Trefor, onto a series of quiet country lanes that lead runners through some of the island’s most traditional agricultural landscapes. These peaceful roads, edged with hedgerows and historic field boundaries, highlight the deep rural character that defines the heart of Anglesey.

Leaving Trefor, open countryside gives runners superb long-range views of Eryri. The mountain skyline rises clearly from this part of the course, creating a stunning backdrop as you move through gently undulating terrain.

Continuing toward Bodffordd, the landscape opens again. Here, runners enjoy more sweeping mountain views framed between fields, farmsteads, and the quiet, timeless lanes of central Anglesey. This section captures the island at its most authentic and scenic.

The course then arcs south toward Llyn Cefni. As runners approach the reservoir, the setting becomes wide and atmospheric, with beautiful water views and distant mountain silhouettes. Rejoining the A5, the road gently rises and falls as runners make their way back toward the Anglesey Showground. Eryri comes back into view as the finish line draws near, creating a spectacular closing scene for your final push. Supporters, music, and the lively race-village atmosphere welcome runners home.

This entirely closed-road half marathon is a celebration of historic rural Anglesey, far-reaching mountain vistas, and the quiet beauty of the island’s countryside. From the first steps to the final sprint, it’s a route that feels both scenic and deeply rooted in place — a true Anglesey experience.

Cut-off time

In the interest of athlete safety and the safety of volunteers on the course there will be strict cut-off times in place. A confirmation of specific cut-off times will be detailed in your Final Instructions which will be available on the website 10 days prior to the race.

Runners arriving at Gallows Point (approx. mile 10) more than 2½ hours after the race start time will not be permitted to continue in the race. There will be a shuttle vehicle available to collect those who have not made the cut-off.

If you are still taking part in the race when the road re-opens, you will be asked to move to the pavement for your own safety.

Finish line timing will finish at 13:00.

Event HQ

Anglesey Show Ground
Holyhead
Isle of Anglesey
LL65 4RP
UK

Anglesey Showground is located in Mona, Anglesey, just a couple of minutes from junction 6 of the A55, and 10 minutes from the mainland and the city of Bangor.

Included

• Spectacular scenery - views across Anglesey and Eryri (Snowdonia)
• Professional timing - chip timed, live tracker and SMS text result
• Fully signed and marshaled route
• Access to event village - music, commentary, food vendors and shopping
• Locally sourced slate finisher coaster
• Bag of Jones o Gymru Crisps
• Event memento
• Drink stations (Water, High5 and High5 gels)
• Secure bag drop

Optional extra

• Race photography - high quality photo packages are available to pre-order

Prizes

There will be a prize-giving ceremony after the race. Details will be in your final instructions. All prizes must be collected on the day so make sure you attend the ceremony and receive your big Welsh cheer!

Prize Categories for the Anglesey Half Marathon are (for both men and women):

• Overall: Top 3*Under20: 1st runner
• Senior: 1st runner
• V40: 1st runner
• V45: 1st runner
• V50: 1st runner
• V55: 1st runner
• V60: 1st runner
• V65: 1st runner
• V70: 1st runner
• V75: 1st runner
• V80: 1st runner

* If any runner places in Overall and Vet then a drop-down system will occur.

Truly fantastic race! I will definitely be back - the start line is fantastic, the views throughout are spectacular and a massive thanks must go to the locals who came out in force ringing their cowbells to support every runner.

 This was a lovely race. Well organised with good pre event info. Amanda C

This was my first half marathon. Runners of all types. The hilly bits are not too bad actually, was a bit scared but by the time I got there, the spirit of the experienced runners lifts you through. Tuheen H

Brilliant, gorgeous and unique race with awesome start location and so much support along the way. Ali L

This was without doubt the most picturesque 10k I've done to date. Running down underneath the bridge was amazing. Clive P

It's my 6th visit to the Anglesey Half Marathon. And it still remains my favourite road race. Si F

This was my first road race. It was a fantastic event and one that I will never forget Gemma D

I thoroughly enjoyed the Anglesey Half Marathon. The scenic, undulating course started promptly, no messing, straight into the race. The support, be it marshals, supporters and participants were all great sports! San B

Reviews thanks to Race Check

Locally-sourced Welsh slate coaster finish memento and sustainable giveaway. 

All UK residents who opted to have their bib posted and entered at least 21 days before the event date will receive their bib (race number) through the post. If you’re one of these people, there is no need to register in person before the event. Your Final Instructions will be emailed to you 10 days before the event and will also be available on the website.

If you live outside the UK, opted to collect your bib, or entered within 21 days of the event start date, your bib (race number) must be collected before the race. Bib collection will be available 1 hour prior to your race start and can be found near the start line in the event village*. You will be able to find the Final Instructions on the website 10 days before the race.

*There will be an information desk in this location for any inquiries.