Is This Plan For You?

This 16-week Marathon Base plan by GA Endurance is designed for runners who want to build a strong, durable, and efficient aerobic foundation before progressing into race-specific marathon training.

It is ideal for athletes who are returning to structured training or aiming to develop consistency, endurance capacity, and structural resilience within a more time-efficient framework.

If your goal is to establish a solid aerobic base, improve running efficiency, and prepare your body for higher training loads, this plan provides a clear and progressive pathway.

What You Can Expect

• A complete 16-week structured Base progression

• Gradual and controlled volume increase to support sustainable adaptation

• Strong emphasis on aerobic capacity, efficiency, and movement economy

• Consistent, easy, and steady-state runs to build endurance durability

• Introduction of controlled tempo work to prepare for future intensity

• Progressive long runs to safely extend aerobic capacity

• Periodized recovery weeks to support adaptation and reduce injury risk

• Development of structural durability (tendons, muscles, connective tissue)

• Clear, easy-to-follow workouts using pace, heart rate, or perceived effort

• Optional strength guidance to support injury prevention and durability

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 8–12 km

• Train consistently 4–5 times per week

• Be ready to follow a progressive endurance-focused structure

A GPS watch and heart rate monitor are recommended for best results.

Final Note

This 16-week base plan is designed to build the physiological and structural foundation required for high-level marathon performance.

You will improve aerobic capacity, enhance durability, and establish the consistency needed to transition into more advanced marathon training phases.

Explore more training plans at GA Endurance