supertri Blenheim Palace, Woodstock, Oxfordshire

supertri Blenheim Palace 2027

Woodstock, Oxfordshire
5 – 6 June 2027 Triathlon Super Sprint · Sprint Season openerFirst-timer friendlysupertri

The UK's most beautiful season opener, now part of the supertri family. A lake swim in the grounds of a palace, closed-road bike laps through the estate, and a run past the front door of a World Heritage Site.

Terrain
Road
Closed estate roads
Elevation
Rolling
160m gain · One climb out of the lake, every lap
Entry
£79+
Variable
Swim
Lake
The Great Lake, Capability Brown's own
Wetsuit
Wetsuit-legal
usually 14–17°C
Region
South East
Woodstock, Oxfordshire
Your runway

43 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 12-week block starts later; what you do now decides how high it can climb.

R
Recover
Fix the nervous system first. Sleep, HRV, and the noise out.
A
Align
Fit the plan to your actual life, not the one you wish you had.
C
Condition
Minimum effective dose. The right sessions, done fresh.
E
Execute
Race-week protocol, pacing, contingency. Nothing new on race day.

Building for this one? sprint 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.

Abraham Spring, founder of Unbroken

“The one I send first-timers to. The setting does half the nerves for you, and as supertri ambassadors we always have a crew there.”

Abraham Spring: founder, Unbroken

The race

Blenheim is where thousands of British triathletes start, and under supertri it has kept everything that made it special. The swim is a calm, marshalled lake with a walk-in start. The bike is closed estate roads, so you can ride hard without traffic. The run is two flat-ish laps with one pull up from the lake. Waves go all weekend, so you pick a start time that suits your life, and the Weekend Warrior format lets you stack back-to-back races if one is not enough. If it is your first triathlon, this is the gentlest serious start line in the country.

Questions, answered

When is supertri Blenheim Palace 2027?

supertri Blenheim Palace takes place on 5 – 6 June 2027.

What distances can I race at supertri Blenheim Palace?

Super Sprint · Sprint. Pick the distance that fits your training runway, not your ego: the right distance is the one you can arrive at fresh.

How hard is the course?

Road terrain, rolling profile with around 160m of climbing. One climb out of the lake, every lap

What is the swim like?

The Great Lake, Capability Brown's own. Wetsuit-legal, usually 14–17°C. Practise open water before race week, not during it.

How long do I need to train for it?

From today you have 43 weeks. A full 12-week recovery-led block fits comfortably: start it in the app and it anchors to this exact date.

How do I enter?

Entries are handled by the organiser, from £79. Use the Register button above: it goes straight to the official site.

This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by supertri Blenheim Palace 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.

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