Running
Run a half marathon (21.1 km) in 1:30 in 16 weeks
A pace of 4:15 per kilometre over 21 km takes volume and patience — the plan spreads the load across 12–16 weeks.
- Distance
- half marathon (21.1 km)
- Target time
- 1:30
- Training horizon
- 16 weeks
- Price
- 450 ₽ per month or 4999 ₽ per year
The first 7 days are free, no card needed. No automatic charges: the subscription renews only manually.
A half marathon of 21.1 km in 1:30 requires an average pace of about 4:16 per kilometre, and to go under that time — a little faster. A 16-week horizon assumes an already built base and experience of long runs. What matters is not just holding the required speed in short work, but keeping an economical stride as fatigue builds.
In 1trAIner the coach distributes long, easy and intense sessions around your level and schedule. Once you connect Garmin or Apple Watch, watch data syncs automatically, and after every workout the plan is recalculated. The growth of training load is matched to recovery, not to a fixed mileage for everyone.
First the sustainable volume is consolidated, then, as readiness allows, the duration of work at race effort increases. Progress is judged by how steady the pace is at the end of long sessions and by how you feel afterwards. The final weeks shift the focus from accumulating load to recovery and an accurate pacing strategy.
What you get during 7 days of free access
- In the first 7 free days, fill in the questionnaire about your results, weekly volume, long runs and the date of your half marathon.
- Get the first week of the plan with an endurance assessment at your usual, not maximal, load.
- Review pace, heart rate and fatigue after sessions to refine the volume and intensity of your preparation.
How it works
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1
You tell us about yourself
Your level, how many days a week you're ready to train, the race date or goal deadline. Five minutes in chat or in the questionnaire.
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2
You get a plan
The coach builds a cycle up to your goal and gives you the week day by day: what to do, at what pace, and why this particular workout.
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3
The plan follows you
Workouts from your watch sync automatically, and the review arrives in chat. Missed a session or got sick — the week is rebuilt.
Frequently asked questions
Do I need a sports watch?
No. You can start without one: the plan is built from your answers about your goal, level, and available time. With a Garmin or Apple Watch, accuracy is higher — the coach sees your heart rate, sleep, and actual weekly volume.
What happens after the free week?
The subscription costs 450 ₽ per month or 4999 ₽ per year. There are no automatic charges: your card is not saved, and renewal is only manual via the link in the reminder.
Is the coach a person or a program?
1trAIner is an informational service: plans and reviews are prepared by AI based on your data. This is not a medical service and not a substitute for a doctor or an in-person coach.
What if my goal changes?
Let us know in the chat. Right now the plan is built for the goal “Run a half marathon (21.1 km) in 1:30 in 16 weeks”, but moving a race, an injury, or a vacation is normal: the coach will recalculate the cycle for the new conditions.
In the blog
The first 7 days are free, no card needed. No automatic charges: the subscription renews only manually.
Subscription terms are on the plans page and in the public offer. The service provides informational services and does not replace a doctor or an in-person coach.