Finish your half marathon feeling strong.
21.1 km rewards patience. Your plan builds the long run, mixes in the right quality sessions, and tapers so you start fresh.
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See a Half marathon week built for you
Enter a recent race time and the days you can run. Your paces and sample week appear in a second, calculated on your device.
Who this plan is for
Runners who can already run 5 to 10 km and want a steady build to a half marathon, whether the goal is just to finish or a personal best.
How it is built
- Long runs that grow safely, with an easier week every few weeks
- Race-pace and threshold work so your goal time feels familiar
- A race-day plan with splits, fuelling and what to do if things go wrong
Questions about the Half marathon plan
How long does it take to train for a half marathon?
Most people need twelve to sixteen weeks if they already run regularly. The plan length depends on your race date and starting fitness.
How many days a week should I run?
Four is a good balance for most runners, five if you are chasing a faster time. Choose the days you can reliably train.
What is a good half marathon goal time?
Enter a recent 10K or 5K time and Runergy Lab shows what that fitness predicts, so your goal is realistic and still a stretch.
Other plans
First 5K plan
People who are new to running, or coming back to it after a long gap, and want a clear route to 5 km without an injury on the way.
See the plan →8 to 12 weeks10K plan
Runners who have a 5K behind them and want to move up, and experienced runners who want a structured block for a 10K goal.
See the plan →16 to 20 weeksMarathon plan
Runners with a base of regular running who want to complete a marathon or run a faster one, with a plan that survives a busy life.
See the plan →6 to 12 weeksComeback plan
Runners returning after illness, a baby, a busy season or time off, and anyone being careful after a niggle. It is a training tool, not medical advice: check with a professional after an injury.
See the plan →Start your half marathon plan today
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