Cholmondeley Castle Triathlon 2027
The Castle Series in Cheshire. A mere swim in the castle grounds, rolling Cheshire lanes, and a parkland run, with everything from sprint to half distance.
45 weeks to race day: base season
Plenty of runway. This far out, the win is a boring, consistent base rhythm: aerobic volume, strength, technique. The structured block starts closer in; what you do now decides how high it can climb.
Building for this one? 70.3 training plan covers the sessions, the weekly shape and how the block is paced. The R.A.C.E. Framework explains why it is built that way.
Build my complete road.
Commit to the date and the work gets a shape: your countdown starts, the emails arrive in step with your build, and the app anchors a recovery-led block so the final week lands exactly on race day.
One confirmation email, then the road begins. Registering for the race itself stays with the organiser.
“The northern leg of the Castle Series. Same formula as Hever: a beautiful estate, every distance on one weekend, and a race the whole family can enter.”
The race
The course
No course maps for this race. The organiser publishes no downloadable route for any leg of this race, so there is nothing to draw a course map from. Everything below comes from the official course page, checked on the date at the foot of this section.
The mere in the Cholmondeley Castle grounds. The organiser publishes separate swim maps for the Sunday Gauntlet and the Sunday Standard, so the two distances do not share a course.
Cheshire lanes from the estate. The only cycle route the organiser links here is a 14km circuit, which measures 13.9km, and a single shared map covering the Saturday and Sunday adult races, so the lap structure of the Gauntlet bike is not published.
Estate and parkland running. The organiser links a 7km route, measuring 7.0km, and a 5km route, but publishes the half marathon only as a separate map without a stated lap count.
Not yet confirmed for this edition: swim lap count, bike lap count, run lap count, elevation gain, cut-off times, water temperature. We publish these only once they are on the official course page, so check there before you pace off anything here.
Course details verified against the official Cholmondeley Castle Triathlon course page on 14 August 2026. Courses change; the official page is always the last word.
Questions, answered
When is Cholmondeley Castle Triathlon 2027?
What distances can I race at Cholmondeley Castle Triathlon?
How hard is the course?
What is the swim like?
How long do I need to train for it?
How do I enter?
Read before you race
IRONMAN 70.3 Tallinn Training Guide
How Much Harder Is a Full IRONMAN Than a 70.3?
Your First Triathlon.
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Photograph of Malpas, Cheshire: Stephen Llowarch, CC BY-SA 2.0, via Wikimedia Commons. Not official race photography.
This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by Cholmondeley Castle Triathlon or its organiser. Details are based on publicly available information; names are used descriptively to identify the event. For accurate, up-to-date information and to enter, always use the official event website.