Is This Plan For You?
This 16-week Half Distance Intermediate plan by GA Endurance is designed for triathletes who already have a consistent training background and want a well-structured progression toward race day with sufficient time for controlled 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.
If you are looking for a structured and progressive pathway that builds both capacity and race execution, this plan provides a clear and disciplined roadmap.
What You Can Expect
• A complete 16-week structured Half Distance progression leading into race day
• Balanced base phase with gradual transition into build and race-specific work
• Progressive development 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 1,500–2,000 meters continuously
• Ride consistently for 2–3 hours
• Run continuously for 55–75 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 16-week intermediate half distance plan is designed to provide a complete and balanced progression toward race performance.
With sufficient time for structured 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
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.