Is This Plan For You?
This 18-week Half Marathon Beginner plan by GA Endurance is designed for runners who want a deeper, more complete progression toward half-marathon performance.
It is ideal for athletes who can already run 5–8 km continuously and are ready to commit to a longer, structured training process that builds endurance, pacing control, and durability with precision.
If you are looking for more than a short-term plan—and want to develop a strong, reliable performance base—this plan provides a clear and effective pathway.
What You Can Expect
A structured 18-week progression combining extended Base development
Gradual and controlled increase in volume with clear intensity management
Strong focus on aerobic capacity, steady-state strength, and long-run durability
Longer and more consistent steady sessions to improve pacing stability
Integrated testing phases to track progress and recalibrate training zones
Simple, easy-to-follow workouts using pace, heart rate, or perceived effort
Optional strength guidance to support injury prevention and long-term consistency
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:
Run continuously for at least 5–8 km
Train 3–4 times per week consistently
Commit to a structured 18-week progression
A GPS watch or heart rate monitor is recommended for best results.
Final Note
Over these 18 weeks, you will build a strong aerobic foundation, improve your pacing precision, and develop the durability required for half-marathon performance.
This plan is designed to deliver deeper and more sustainable progress, preparing you for race-specific or higher-level training phases.
To continue your development, explore more plans at:
www.gaendurance.com
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.