Caernarfon Half Marathon
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About the race
The Caernarfon Half Marathon takes place on 6 September 2026 in Caernarfon. The race starts and finishes next to Caernarfon Castle and follows a route with a few small rises and some long fast downhill sections. Race headquarters and number and chip collection are located next to the start and finish in front of the castle. Drink stations are provided at about every three miles and at the finish; runners who need extra water are advised to carry their own bottle.
Toilets are provided by portaloos near the start and finish, with additional public toilets nearby. A professional medical team will provide first aid at the start, on course and at the finish; medical information on the back of the race number should be completed. There is a strict time rule. Each mile must be completed in under 15 minutes or the runner may be eliminated after the third mile.
Organisers expect a pace of around 12 to 15 minutes per mile to complete the half marathon within about three to three and a half hours. If directed, slower runners may be asked to move to pavements and follow pedestrian rules. All finishers receive a technical T shirt and a bespoke medal. Prizes are awarded for male and female 1st, 2nd and 3rd overall and for first in each age category.
Some road closures will be in place but not all roads are closed to traffic; marshals will give instructions. A baggage area and a merchandise tent are available. Headphones are not permitted except bone conduction types.
Deliberate littering outside water stops or away from marshals may lead to disqualification. Free charity entry is available with St David’s Hospice subject to minimum sponsorship. Results and race photos will be published after the event. Visit the organization's website for the most recent information.
