Is This Plan For You?
This 12-week Beginner Base Marathon plan by GA Endurance is designed as a structured, progressive foundation phase before starting a full marathon training program.
It is ideal for individuals who are new to structured running or returning after a break and want to build consistency, improve aerobic capacity, and prepare safely for more demanding marathon training.
If you are looking for a gradual, comprehensive start to your marathon journey, this plan provides a clear, supportive pathway.
What You Can Expect
• A complete 12-week structured Base progression for Marathon Beginner athletes
• Low to moderate volume with gradual and consistent load increase
• Strong emphasis on aerobic development and endurance building
• Run/walk progression transitioning into more continuous running over time
• Progressive long runs designed to build endurance step by step
• Minimal structured intensity with light neuromuscular and controlled efforts
• Strategically placed recovery weeks to support adaptation and reduce injury risk
• Focus on movement efficiency, pacing awareness, and training consistency
• Clear, easy-to-follow workouts using pace, heart rate, or perceived effort
• Optional strength guidance to support durability and injury prevention
Coaching & Support
This plan includes Coach Access.
If you have any questions during your training, you can reach out anytime via:
coachsupport@gaendurance.com
Requirements
To start this plan, you should be able to:
• Perform light physical activity and be cleared for endurance training
• Run or walk comfortably for 20–35 minutes
• Train consistently 3–4 times per week
• Be ready to follow a structured and progressive base phase
A GPS watch is helpful, and a heart rate monitor is recommended for better intensity control.
Final Note
This 12-week beginner-based plan is designed to build a strong and sustainable foundation for marathon training.
With a longer base duration, the focus is on gradual adaptation, consistency, and injury prevention. If followed with discipline, this plan will help you develop endurance, improve confidence, and prepare your body for the demands of a full marathon training program.
Explore more training plans at GA Endurance
I’m Goksen Cinar, MSc, a sports scientist, national team coach, and founder of GA Endurance. With 25+ years of experience and more than 2,000 athletes coached, I combine sports science, data analysis, and practical endurance coaching. I’m a 4-time IRONMAN 70.3 World Championship qualifier and 4-time full-distance IRONMAN finisher, providing full-time coaching built around each athlete’s goals and life.My coaching philosophy begins with the individual.