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

Knowing the cost of entry is fair*

"We price match or lower our entry fees against other leading race organisers, thats our entry fee promise to you"

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

Discount codes cannot be used against this series, the big bonus medal we are giving away free of charge costs a lot of money, so we cannot discount the series.

You can enter the individual races with your codes to complete the series, but you won't get the big medal.

RACE DAY INFORMATION
Please go to the individual race pages.