The Big Half 2027
A big-city half from the London Marathon team: Tower Bridge, the Highway, and a finish by the Cutty Sark, from £15.
2027 edition completed
This record covers the 5 September 2027 edition of The Big Half in London. This date belongs to a completed edition. The course record remains available. Course descriptions and coaching notes are archived context for this edition. Check the organiser for a future edition once its date and entry details are published.
46 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? Training plans cover 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 we will walk you to it: a countdown, honest guidance by email, and the debrief afterwards. Full adaptive training for running races is coming; nothing here pretends otherwise.
One confirmation email, then the road begins. Registering for the race itself stays with the organiser.
“London Marathon's little sibling and the perfect dress rehearsal: same organisers, same energy, a third of the distance.”
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.
Point to point across London: start on Tower Bridge, finish beside the Cutty Sark in Greenwich. First run in 2018 and organised by the London Marathon team, which is why the closed roads and the crowd feel like a scaled-down version of the marathon itself. The weekend also carries the Big Relay and the Big Mile.
Not yet confirmed for this edition: detailed route, elevation gain, cut-off times, start time. 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 The Big Half course page on 14 August 2026. Courses change; the official page is always the last word.
Questions, answered
When is The Big Half 2027?
What distances can I race at The Big Half?
How hard is the course?
How long do I need to train for it?
How do I enter?
Read before you race
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Photograph of London: mattbuck (category), CC BY-SA 4.0, via Wikimedia Commons. Not official race photography.
This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by The Big Half 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.