Race details

Castle to Castle Run is a 52.4 Mile race in Carrickfergus Castle, County Antrim on Saturday 20 March 2027, starting at 6am. Registration is online. Castle to Castle offers a 52.4 mile ultra and a marathon over Knockagh, Carnmoney Hill and Cavehill on a mix of trail, footpath, road and forest paths. The ultra runs from Carrickfergus Castle to Belfast Castle and back, while the marathon runs one way from Belfast Castle to Carrickfergus Castle. Runners are self-sufficient, carry mandatory kit and follow the route by GPS, as the course is not signed or marshalled.

Good to know

Important info

Entry fee: From £60 - £70
Distance: 52.4 Mile
Location: Carrickfergus Castle, Co. Antrim
Craic level 90

More info

Updated 3 Oct 2026

Location

Carrickfergus Castle, Co. Antrim

Map location is approximate. Check the organiser's website for the exact start line and course details.

About this listing

Leggit lists events for information only. We do not organise, endorse or recommend the races listed. Check the organiser's website before booking or travelling.

FAQs

When is the race?

Sat 20 Mar 2027, starting at 6am.

Where is the race?

Castle to Castle Run takes place in Carrickfergus Castle, Co. Antrim.

What distance is the race?

52.4 Mile.

How much does it cost to enter?

Entry starts from £60 - £70.

How do I enter?

You can register online here.

What is Leggit?

Leggit is an independent hub for runners in Ireland. We bring race information together in one place so you can discover events, save your favourites and plan your upcoming races. We do not organise the races listed here. Event entry is handled by the organiser or their registration provider.

Download the Leggit app

  • Save this race and add it to your calendar.
  • Get entry and results alerts.
  • Find your result and build your running history.
iOSAndroid app coming soon, November 2026