Trail Running calendar near Caernarfon 2024-2025

We have found 84 Trailruns within 80 miles of Caernarfon. See below where and when you can find the races.

Ultra X Wales is a multi-stage ultra-marathon event set in the stunning landscapes of southern Snowdonia, Wales. Participants can choose from various race distances, including 110km, 60km, 50km, and 25km, with options for both single and multi-day formats. The course features looped trails that show..

August 2025

The EDDUM is an exciting 50-mile trail running event set to take place around the scenic Epynt Way, showcasing the stunning landscapes of Wales. Participants will traverse a mostly untouched permissive path that loops around the Sennybridge Training Area, the UK's third-largest military training gro..

The Ogwen | Yr Helgi Du 2025 is a thrilling trail running event set in the stunning Eryri's Ogwen Valley, featuring three challenging distances: 10K, 25K, and 40K. Participants will navigate some of the highest mountains in England and Wales, including the impressive Carneddau and Glyderau ranges. T..

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The PFW Running - Ribble Runfest is an exciting running event set in the picturesque parklands of central Preston. Participants can choose from multiple distances, including a 10K, half marathon, marathon, and ultra marathon, all starting near Avenham Park by the River Ribble. The course features ha..

The Moel Famau 24 event is a unique running challenge set on the scenic Clwydian Hill, featuring a 7.2km loop with a 500m ascent. Participants can choose to run solo or in teams for either 12 or 24 hours, with no cut-off time or minimum laps required. The event promotes a relaxed atmosphere, allowin..

The Leeds & Liverpool Canal 130 Mile Race (LLCR) is a non-stop endurance event that takes place along Britain's longest man-made waterway, the Leeds & Liverpool Canal. Scheduled for August 2025, this race challenges participants to complete the 130-mile course from Liverpool to Leeds within a 40-hou..

Ring O' Fire is a challenging coastal ultra marathon held over three days, covering approximately 135 miles along the stunning Anglesey Coastal Path in North Wales. This event, which has been a favorite since 2012, showcases the breathtaking scenery of the region, including the Snowdonia mountain ra..

September 2025

The Dragon's Back Race® is a renowned ultra-running event held over six days, covering a challenging 380km with an ascent of 16,400m along the mountainous spine of Wales. Starting from Conwy Castle and concluding at Cardiff Castle, this legendary race offers participants breathtaking scenery and a s..

The Across Wales Walk is a renowned challenge walking event that spans 45 miles across Wales, allowing participants to walk or run the route within 18 hours. Celebrating its 62nd year, the event offers a full weekend experience, including overnight accommodation, transport, refreshments along the ro..

The Yr Wyddfa Ultra 100 is an exhilarating 100-mile ultramarathon set in the stunning Snowdonia National Park, featuring a challenging elevation gain of 5788 meters. Scheduled for September 6, 2025, the event accommodates 250 participants and has a cut-off time of 40 hours. Runners will navigate thr..

The Yr Wyddfa Ultra 50 is an exhilarating ultra-marathon set in the stunning Snowdonia National Park, specifically around the village of Betws-y-Coed. Covering a challenging distance of 45 miles with an elevation gain of 3,254 meters, this event invites experienced runners to navigate rugged mountai..

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The RunThrough Snowdonia Sea2Sky Trail Races, taking place on September 6, 2025, offers participants the choice of two challenging distances: 25k and 53k. Set against the stunning backdrop of Snowdonia, this event promises exhilarating trails and breathtaking views. Runners will receive a bespoke fi..

The Sandstone Trail Races feature a unique trail running experience in Cheshire and North Wales, offering two concurrent point-to-point races. The event starts at Bickerton Hill National Trust Car Park and concludes at Kelsall Hill Equestrian Centre, providing excellent facilities for participants a..

The 2 HillForts Hill Race is an exciting running event set in the scenic Clwydian Range Area of Outstanding Natural Beauty. Participants will tackle a challenging course of just under 9 miles, featuring a significant ascent of 2500ft as they navigate the two hillforts of Moel Arthur and Penycloddiau..

The Snowdonia Mountain Skills Weekend, organized by Running Adventures, offers an immersive experience for advanced trail runners looking to enhance their mountain skills. Set in the stunning Nantlle Valley, participants will engage in challenging runs, including steep climbs and navigation exercise..

The Town to Tower 10K is an uphill race that takes participants from the charming market town of Ruthin to the summit of Moel Famau, located in the stunning Clwydian Hills. This unique 10K route offers a challenging experience for runners of all abilities, culminating at over 550 meters above sea le..

EcoTrail Wicklow is an exciting trail running event set in the stunning landscapes of Wicklow, Ireland. Scheduled for September 27, 2025, participants can choose from various distances, including 10K, 19K, 30K, 46K, and an 80K challenge, each offering a unique experience with a high percentage of na..

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The Bridgeathon, organized by PFW Running, is a multi-distance running event taking place along the scenic Lancaster canal towpath. Participants can choose from a 10K, half marathon, marathon, or ultra (32 miles) route, with all distances featuring a flat course and a time limit of 6 hours. Runners ..

October 2025

The Loop Ultra is a challenging 32-mile trail running event set in the stunning Cambrian Mountains of Mid Wales, starting at Camp Plas near Dolanog. Scheduled for October 2025, this exclusive event is limited to 100 participants, catering to runners of all levels. The route features breathtaking vie..

Loggerheads Autumn Trails is an exciting running event featuring extended versions of popular 5k and 10k races, set in the scenic Loggerheads Country Park. Participants can enjoy varied terrain and challenging routes, with no time limits, making it accessible for runners of all abilities. The event ..