Beginner Marathon Training Plan

Free beginner marathon training plan. 20-week periodized schedule with easy progression from base to race day. Export to Google Calendar.

Running your first marathon? A 20-week plan with gradual progression, conservative mileage build, and structured recovery is your foundation. Here's how to get to the start line healthy.

20-week beginner-specific progression
Conservative mileage build to prevent injury
Walk breaks and run/walk options supported
Complete periodization: base, development, sharpening, taper

How to Follow a Beginner Marathon Training Plan

A step-by-step guide for first-time marathoners

Select Marathon: Choose Marathon as your goal race
Set beginner level: Choose Beginner fitness level in the plan generator
Pick 20 weeks: Use the longest plan duration for maximum base building
Generate and export: Get your plan and export to calendar for daily reminders

Frequently asked questions

Can a beginner run a marathon?

Yes. With 20 weeks of dedicated training, most people who can run 30 minutes continuously can complete a marathon. The key is conservative progression (no more than 10% weekly mileage increase), consistent easy running, and protecting the long run each week.

How much should a beginner run per week for a marathon?

Beginner marathon plans typically start at 25–30 km per week and peak at 50–60 km. The long run builds from 12 km to a peak of 30–32 km, usually 3 weeks before race day.

Should beginners do intervals when training for a marathon?

Not in the early phases. Beginners should focus on building aerobic base with easy running for the first 8 weeks. Structured tempo and interval work can begin in the development phase once you have a consistent mileage base.

Plan length and phase structure

Plan length and phase split by race and fitness level (weeks)
Race	Level	Total	Base	Development	Sharpening	Taper
5K	Beginner	8	2	2	2	1
5K	Intermediate	10	3	2	3	1
5K	Advanced	12	4	3	3	1
10K	Beginner	10	3	2	3	1
10K	Intermediate	12	4	3	3	1
10K	Advanced	14	5	4	3	1
Half Marathon	Beginner	12	4	3	2	2
Half Marathon	Intermediate	14	4	3	4	2
Half Marathon	Advanced	16	5	4	4	2
Marathon	Beginner	16	5	4	4	2
Marathon	Intermediate	18	6	5	4	2
Marathon	Advanced	20	7	5	5	2

Method and sources

The numbers on this page are computed with the same code as the TrainPace calculators, from these published methods. They are training guidance, not medical advice.

Daniels, J. Daniels' Running Formula. Human Kinetics — VDOT, training zones, and equivalent race times.
Daniels, J. & Gilbert, J. (1979). Oxygen Power: Performance Tables for Distance Runners — the oxygen-cost and %VO2max equations behind VDOT.

Other TrainPace tools

For AI agents

Every public page on this site has a Markdown mirror at the same path with a .md suffix (for example /calculator.md), and honors an Accept: text/markdown request header on the HTML URL. The calculations here are also available as callable tools through a free public MCP server — no account or API key.