Go all in for 2026. Purchase a training plan and get 25% off Premium at checkout for a limited time.

Browse More Plans

GA Endurance | Half Distance Advance | 28 Weeks | Structured Plan | Coach Access

Browse More Plans

GA Endurance | Half Distance Advance | 28 Weeks | Structured Plan | Coach Access

Includes Structured Workouts

Structured Workouts automatically sync with compatible devices and guide you through workouts in real time.


Learn More about Structured Workouts.

Author

GA Coaching

All plans by this Coach

Length

28 Weeks

Includes Structured Workouts

Structured Workouts automatically sync with compatible devices and guide you through workouts in real time.


Learn More about Structured Workouts.

Plan Description

Is This Plan For You?

This 28-week Half Distance Advanced plan by GA Endurance is designed for experienced triathletes who want a long, highly structured, and performance-driven progression toward race day with maximum control over development.

It is ideal for athletes who already have a strong training background across swim, bike, and run, and are ready to follow a demanding system focused on maximizing endurance, efficiency, and race execution over an extended period.

If you are looking for a comprehensive and progressive roadmap that allows precise load management and peak performance optimization, this plan provides a clear and structured pathway.


What You Can Expect

• A complete 28-week structured Half Distance progression leading into race day

• Long base phase allowing gradual and sustainable endurance development

• High-level progression across swim, bike, and run disciplines

• Strong emphasis on aerobic capacity, efficiency, and durability

• Progressive long sessions to maximize endurance and fatigue resistance

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

• Advanced bike sessions focused on sustained power, pacing precision, and efficiency

• Run sessions designed to optimize performance and durability under fatigue

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

• Integrated brick sessions to simulate race demands and transitions

• Strategically controlled recovery to maintain peak performance 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 2,000–3,500 meters continuously

• Ride consistently for 3–4 hours

• Run continuously for 75–95 minutes

• Train consistently 5–6 days per week

• Have strong experience with structured triathlon training

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


Final Note

This 28-week advanced half distance plan is designed to provide a long and performance-focused pathway toward race execution.

With extended development time, the focus is on precision, execution quality, and intelligent load management. If followed with discipline, this plan will help you maximize endurance, refine pacing strategy, and arrive at race day ready to perform at your highest level.

Explore more training plans at GA Endurance

How it Works

Load Your Plan

Quickly view upcoming workouts in the TrainingPeaks app.

Workout and Analyze

Upload completed workouts from your favorite tracking app or device.

Track Your Progress

Get feedback, stay on top of your training and perform at your best.

Learn More

Training Plan Sample Week

Stats

Average Weekly Breakdown

Workouts Weekly Average Longest Workout
Swim x4
36m 1,000m
Run x4
03:31:00 02:00:00
Bike x3
04:30:00 03:30:00
Day Off x1
—— ——
Workouts Per Week Weekly Average Longest Workout
Swim
36m 1,000m
Run
03:31:00 02:00:00
Bike
04:30:00 03:30:00
Day Off
—— ——

Training Load By Week


This plan works best with the following fitness devices:

  • Power Meter
  • Heart Rate Monitor
  • GPS

All supported devices

GA Endurance

GA Coaching & Sports Science

Goksen Cinar, MSc, and Ozgur Axaman, combining decades of coaching experience with applied sports science. Both are multiple-time Ironman 70.3 World Championship qualifiers, with extensive full-distance Ironman experience. Their system integrates structured training, data-driven methodology, and real-world coaching to help athletes train with clarity, consistency, and long-term performance focus.


  • This plan includes a Free Basic TrainingPeaks Account.
  • Access your training plan anywhere on the TrainingPeaks mobile and desktop apps.
  • Track your performance with robust data tracking and detailed graphs.
  • Plan for your event in the TrainingPeaks calendar.
  • Track your weight, sleep, hours, fatigue and stress while you train.
  • Completed workouts sync with popular apps like Garmin and Wahoo. Learn More
  • If plan includes Structured Workouts, then planned workouts sync to compatible devices and guide you through workouts in real time. Learn More

Refund Policy

This plan is protected by our Refund Policy and may, with the author's approval, be exchanged for a plan of equal value from the same author.

Still have questions about this plan?

Bundle Premium—

Save 20%

Premium unlocks smarter training with advanced analytics, TrainingPeaks Virtual, and Structured Strength to give you deeper insights and data-backed results.

$107.99 USD for the first year, billed yearly.

Bundle Premium—

Save 25%

Premium unlocks smarter training with advanced analytics, TrainingPeaks Virtual, and Structured Strength to give you deeper insights and data-backed results.

$101.24 USD for the first year, billed yearly.

Bundle Premium—

Save 20%

Premium unlocks smarter training with advanced analytics, TrainingPeaks Virtual, and Structured Strength to give you deeper insights and data-backed results.

$107.99 USD for the first year, billed yearly.

$109.00 - Buy Now Buy with Premium Bundle