2026 series is now open for registrations.

Spread the cost of entry interest free! 

Join us for the 2026 Four Castles Series.

Take on four fantastic half marathons set in beautiful locations:

*The Snowdonia Half Marathon - 10th May 2026

*The Caernarfon Half Marathon - 6th September 2026

*The Bangor Half Marathon 4th October 2026

*The Conwy Half Marathon 15th November 2026

You will receive a large bespoke medal and Technical Tshirt at each race, plus a huge bespoke golden medal! 

RACE DAY INFORMATION
Please go to the individual race pages.