Is This Plan For You?

This 20-week Half Distance Intermediate plan by GA Endurance is designed for triathletes who already have a consistent training background and want a well-structured and progressive pathway toward race day with sufficient time for optimal development.

It is ideal for athletes who are regularly training across swim, bike, and run, and are ready to follow a performance-oriented system that balances endurance, intensity, and recovery over a longer preparation period.

If you are looking for a comprehensive and controlled roadmap that builds both capacity and race execution, this plan provides a clear and performance-driven pathway.

What You Can Expect

• A complete 20-week structured Half Distance progression leading into race day

• Extended base phase allowing gradual and sustainable endurance development

• Balanced progression across swim, bike, and run disciplines

• Strong emphasis on aerobic capacity, consistency, and durability

• Progressive long sessions to build endurance and fatigue resistance

• Structured tempo, threshold, and race-pace sessions introduced progressively

• Bike sessions focused on power control, pacing, and sustained efforts

• Run sessions designed to improve efficiency and performance under fatigue

• Swim sessions including technique, aerobic conditioning, and sustained efforts

• Integrated brick sessions to develop race-specific adaptation and transitions

• Strategically placed recovery weeks to support adaptation and prevent overtraining

• Clear, easy-to-follow workouts using power, 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:

• Swim at least 1,500–2,500 meters continuously

• Ride consistently for 2–3 hours

• Run continuously for 60–80 minutes

• Train consistently 4–6 days per week

• Have prior experience with structured triathlon training

A GPS watch, heart rate monitor, and bike power meter are recommended for best results.

Final Note

This 20-week intermediate half distance plan is designed to provide a complete and progressive pathway toward race performance.

With more time for development, the focus is on consistency, execution quality, and controlled load progression. If followed with discipline, this plan will help you build endurance, refine pacing strategy, and arrive at race day confident and ready to perform at your best.

Explore more training plans at GA Endurance