How long does it take to train for a marathon?

Marathon training typically requires 16-20 weeks. Beginners should allow 18-20 weeks to build endurance safely, while experienced runners may be ready in 12-16 weeks. The key is gradual mileage buildup to prevent injury.

What weekly mileage is needed for marathon training?

Marathon training mileage typically ranges from 30-70 miles per week. Beginners might peak at 30-40 miles, intermediate runners at 40-55 miles, and advanced runners at 55-70+ miles. Our AI scales mileage to your experience level.

What's a good marathon time for first-timers?

For first-time marathoners, finishing is the primary goal! Average marathon times are 4:00-5:00 hours. With proper training, many first-timers target 4:00-4:30. Experienced runners often aim for 3:30-4:00, while competitive runners target sub-3:00.

Free Marathon Training Plan Generator | AI-Powered Marathon Plans

Why Use Our Marathon Training Plan Generator?

Training for a marathon requires a structured plan that balances mileage progression, recovery, and race-day preparation. Our AI-powered generator creates a customized 16-20 week marathon training plan based on your current fitness level, weekly mileage capacity, and schedule constraints.

✓Personalized weekly mileage progression to build endurance safely
✓Strategic long runs that gradually build to 20+ miles
✓Speed workouts (tempo runs, intervals) for race-day speed
✓Built-in recovery days to prevent injury
✓Proper taper period before race day
✓Adapts to your available training days (3-6 days per week)

How Long is a Marathon Training Plan?

Most marathon training plans range from 16 to 20 weeks. Beginners typically benefit from 18-20 weeks to build a solid aerobic base, while experienced runners may use 16-week plans. Our generator lets you choose your preferred duration based on your timeline and current fitness.

What's Included in Your Plan?

Long Runs

Progressive long runs building from 10-12 miles to 20-22 miles, strategically placed to maximize endurance while allowing recovery.

Speed Work

Tempo runs, intervals, and threshold workouts to improve your lactate threshold and running economy for race day.

Easy Runs

Moderate-paced runs to build aerobic capacity and weekly mileage without overtraining.

Taper Week

Strategic reduction in volume during the final 2-3 weeks to ensure you arrive at the start line fresh and ready.

Common Marathon Training Questions

How many miles per week should I run?

This varies by experience level. Beginners might peak at 35-40 miles per week, while advanced runners may reach 50-70 miles. Our AI adjusts your plan based on your input.

When should I do my long run?

Most runners do long runs on weekends when they have more time. You can specify your preferred long run day in the generator.

Can I train for a Boston Qualifier?

Yes! Select a higher weekly mileage (45-60+ miles) and our AI will include more speed work and tempo runs to help you hit your BQ time goal.

Ready to Start Your Marathon Journey?

Generate your personalized marathon training plan in 30 seconds. 100% free. No credit card required.

Export Your Plan Anywhere

Once generated, export your marathon training plan as:

PDF: Print and hang on your wall for daily motivation
Calendar (ICS): Import to Google Calendar, Apple Calendar, or Outlook