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Races Half marathon · Dorchester, UK

Dorchester Half Marathon

Dorchester Half Marathon is a rolling half marathon in Dorchester, UK, held each October. A road course of pavements, cycle paths and quiet roads around Dorchester from the cricket club. The organiser lists about 205 m of climbing over the half, spread across gentle rises. Early October in Dorset is mild and changeable, around 8 to 16°C, with a chance of rain. With Dorchester Half Marathon's constant undulation, pace by effort rather than the watch: even effort beats even splits here.

Page rebuilt 2026-11-14 · race facts not independently verified — confirm dates and entries on the official race site

When

October

next: Sunday 3 October 2027

Course

rolling

Half marathon

Conditions

Early October in Dorset is mild and changeable, around 8 to 16°C, with a chance of rain.

Racing this course well

A road course of pavements, cycle paths and quiet roads around Dorchester from the cricket club. The organiser lists about 205 m of climbing over the half, spread across gentle rises.

With Dorchester Half Marathon's constant undulation, pace by effort rather than the watch: even effort beats even splits here.

Getting a place

How you get in
Open entry: first come, first served
Price
From £30

Official Dorchester Half Marathon site →Checked November 2026

Race day

Next race
Sunday 3 October 2027
Start time
09:15
Time limit
No formal cut-off; all runners must be back by 14:00
Also on the day
10k

The course in numbers

Layout
Loop
Surface
Mainly pavements and cycle paths with quiet urban sections
Total climb
205 m

Pick your goal for Dorchester

Pace charts, weekly structure and timelines for the most common half marathon goals:

The date shown is the one the organiser has announced. Change it if yours differs.

Build your training around Dorchester Half Marathon.

RunV works backwards from race day to today. Your plan adapts when life interrupts, and you approve every change. It does not adapt to this specific course — the pacing guidance above is where the course knowledge is.

Everything above stays free and complete — this is an optional next step, not a paywall.

Course profile, October conditions and how to pace it — the short version, in your inbox.

Asked often

When is the Dorchester Half Marathon?
The next Dorchester Half Marathon is on Sunday 3 October 2027 in Dorchester, UK. It is held each October.
Is the Dorchester Half Marathon course flat?
A road course of pavements, cycle paths and quiet roads around Dorchester from the cricket club. The organiser lists about 205 m of climbing over the half, spread across gentle rises.
How do I enter the Dorchester Half Marathon?
Open entry: first come, first served. Price: From £30.
How should I train for the Dorchester Half Marathon?
Train specifically for Dorchester — terrain, conditions, goal pace — and let the plan flex around real life. With RunV Premium you can adapt your plan to fit your week.

Not sure what to target? Predict your half marathon time from a recent race →

More half marathon races

Supplements research for this distance

Build for Dorchester — around your actual life

RunV engineers your block backwards from race day in October — and adapts it when training doesn't go to script. You approve every change.

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