Is This Plan For You?
This 12-week Olympic Distance Advanced Base plan by GA Endurance is designed for experienced triathletes who want to build a strong aerobic and structural foundation before entering a higher-intensity training phase.
It is ideal for athletes with a consistent training background who want to develop durability, improve aerobic capacity, and reinforce technical efficiency across swim, bike, and run disciplines.
If you are preparing for a more demanding build phase and want a structured, progressive, and performance-focused foundation, this plan provides a clear and effective pathway.
What You Can Expect
• A complete 12-week structured Base phase for Olympic Distance Advanced athletes
• Progressive training load designed to build aerobic capacity and durability
• Balanced and intentional distribution across swim, bike, and run disciplines
• Strong emphasis on aerobic development, efficiency, and technical execution
• Gradual increase in long session duration aligned with Olympic distance demands
• Controlled aerobic and sub-threshold efforts to establish a strong physiological base
• Bike sessions focused on cadence control, efficiency, and sustainable power development
• Run sessions designed to improve aerobic endurance and movement economy
• Swim sessions including technique refinement and aerobic conditioning
• Structured and progressive brick sessions to introduce race-specific coordination
• Strategic recovery integration to support adaptation and consistency
• Clear, structured 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 1,500–3,000 meters continuously
• Ride comfortably for 2–3 hours
• Run continuously for 60–90 minutes
• Train consistently 5–6 days per week
• Have prior experience with structured Olympic distance training
A GPS watch, heart rate monitor, and a bike power meter are recommended for best results.
Final Note
This 12-week advanced base plan is designed to build the foundation required for long-term performance development.
With a structured and progressive approach, the focus is on improving aerobic capacity, reinforcing movement efficiency, and increasing overall durability across all three disciplines. If followed with discipline, this plan will prepare you physically and structurally for higher-intensity training and race-specific demands in the next phase.
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.