IRONMAN 70.3 Tours Metropole - Loire Valley 2027
A Loire Valley 70.3: a swim in the Cher, a flat bike loop past historic châteaux and a two-loop run along the river.
35 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.
“A river swim means current can matter, so practise sighting and a steady stroke in moving water. The organiser describes a flat bike, so even effort and fuelling matter more than climbing.”
The race
The course
River swim in the Cher. Wetsuits are legal at 24.5°C (76.1°F) or colder, up to 5 mm thick, and prohibited above that.
A flat 90 km loop along the banks of the Cher, past historic châteaux including the Château d'Ussé, according to the organiser.
Two loops along the Cher and past the Parc Honoré de Balzac on its artificial island.
Not yet confirmed for this edition: bike elevation gain, cut-off times, aid station spacing, water temperature history, course maps (not checked against official GPX). 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 IRONMAN 70.3 Tours Metropole - Loire Valley course page on 4 October 2026. Courses change; the official page is always the last word.
Questions, answered
When is IRONMAN 70.3 Tours Metropole - Loire Valley 2027?
What distances can I race at IRONMAN 70.3 Tours Metropole - Loire Valley?
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
Half Ironman Recovery Time: A Practical Return
How Much Harder Is a Full IRONMAN Than a 70.3?
IRONMAN 70.3 Tallinn Training Guide
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This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by IRONMAN 70.3 Tours Metropole - Loire Valley 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 entry, always use the official event website.