Current weekly volume
The opening week comes from runs you have actually finished, not a number someone picked.
Personalized half marathon plan
Twenty-one kilometres, starting from the runner you are now.
A half marathon plan built from your current mileage, your longest recent run, and the days you can genuinely train — then kept honest against what you actually finish.
AI plan generation is temporarily unavailable during maintenance. Account signup does not provide immediate AI access.
Manual training baseline Timeline feasibility check
21.1 km
One clear race goal
Progressive weeks
Build and recovery in context
Your schedule
Training days that fit real life
A personal starting line
Week one is where most half marathon plans go wrong.
Half marathon plans work best when the opening volume, long run, and frequency are grounded in what your body is already prepared to handle.
Longest recent run
Your longest recent run sets where the long-run progression begins.
Available training days
How many days you can train, and which one works for going long.
Race date
Whether the race date is actually realistic from where you are today.
Plan structure
Not every week should be harder than the last.
The exact duration varies by athlete. A useful progression still needs distinct phases and room to absorb the work.
Establish the rhythm
Easy running you can repeat every week without dreading it.
Extend endurance
Volume and long runs climb, with recovery weeks built in to absorb the work.
Add race relevance
Quality work arrives once the base holds it — and easy days stay genuinely easy.
Taper toward race day
Volume drops into race week, but the weekly rhythm stays familiar.
A week with a purpose
Every session should know what it is for.
Peakora gives each workout a type, distance, pace or effort target, and coaching note so the week reads like a plan—not just a mileage total.
Easy runs
Conversational effort. Builds the aerobic base and lets the hard days recover.
Long runs
Extends endurance and doubles as fueling and pacing practice.
Quality sessions
Develops pace and strength, once the base and the phase can carry it.
Recovery weeks
Scheduled, not earned. The week where the previous three actually turn into fitness.
When training changes
Missing Sunday does not mean doubling Tuesday.
Peakora compares completed activities with scheduled sessions and considers what remains in the week before guiding the next decision.
Missed workout
The missed distance does not get stacked onto tomorrow.
Partial session
Distance, pace, and effort, next to what was scheduled.
Harder-than-planned run
Recent load shapes how cautious the next recommendation is.
Schedule disruption
The race stays the target without eating your recovery days.
Coach check
Picking a date does not make it achievable.
When the goal is too aggressive for the current baseline, Peakora can surface safer alternatives before generating the plan.
Timeline
Weeks available
Baseline
Recent volume
Endurance
Longest run
If the goal is too tight
Better to hear that up front — with a workable date, a shorter goal, or a walk-run progression — than to find out in week six.
Connected workouts
Bring the completed training back to the plan.
Enter a goal, target date, available training days, weekly running distance, and longest recent run. Supported Apple Health workouts sync through the Peakora iOS app; this website cannot access HealthKit directly. Manual workout import is not available.
Manual baseline
Goal, date, schedule, recent running context
Apple Health
Supported workouts through the Peakora iOS app
Frequently asked questions
Half marathon plan FAQ
How long should a half marathon training plan be?
It depends on your current weekly volume, longest recent run, how often you train, and the race date. Peakora checks the timeline against your baseline rather than assuming twelve weeks suits everyone.
Can a beginner use Peakora for a half marathon?
Yes, when the timeline is realistic for your base. When it is not, you get a later date, a shorter goal, or a walk-run progression instead of a plan that quietly sets you up to fail.
How many days per week do I need to train?
It depends on your baseline and timeline. You set the days you have, and that number is treated as a hard limit rather than a suggestion.
What happens if I miss a long run?
It gets read against the rest of your week and what is scheduled next. The missed distance is not automatically pushed onto your following run.
Can Peakora generate an AI training plan right now?
AI plan generation is temporarily unavailable while maintenance is in progress.
How does Apple Health work with Peakora?
Apple Health workout sync is an iOS integration through the Peakora iOS app. The website does not access HealthKit directly.
Your road to 21.1 km
Build the plan from your actual starting line.
AI plan generation is temporarily unavailable during maintenance. Account signup is available with Google or email.
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