GA Endurance | Half Marathon Intermediate | 20 Weeks | Structured Plan | Coach Access
GA Endurance | Half Marathon Intermediate | 20 Weeks | Structured Plan | Coach Access
Structured Workouts automatically sync with compatible devices and guide you through workouts in real time.
Learn More about Structured Workouts.
Length
20 Weeks
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 20-week Half Marathon Intermediate plan by GA Endurance is designed for runners who want a focused, structured progression that leads all the way to race day.
It is ideal for athletes who can comfortably run 8–12 km and are ready to improve endurance, pacing control, and race execution through a consistent and performance-oriented system.
If you are looking for an efficient and well-structured pathway that balances aerobic development with race-specific preparation, this plan provides a clear and effective approach.
What You Can Expect
• A complete 20-week progression from Base → Build → Race Preparation
• Gradual increase in volume with structured intensity management
• Dedicated phases for aerobic development, steady-state strength, and race-specific work
• Long runs and steady sessions to improve pacing stability and endurance durability
• Race-pace sessions to build control and confidence before race day
• Integrated testing phases to track progress and recalibrate training zones
• A structured taper phase to ensure optimal freshness for race day
• Clear, easy-to-follow workouts using pace, heart rate, or perceived effort
• Optional strength guidance to support injury prevention and consistency
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
• Have prior structured training experience
• Be preparing for a half-marathon within the next 4–5 months
A GPS watch or heart rate monitor is strongly recommended for best results.
Final Note
This 20-week plan is designed to efficiently prepare you for race day through a clear, structured progression.
You will build your aerobic capacity, improve pacing precision, and develop the control needed to execute your half-marathon with confidence.
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.
Training Plan Sample Week
Stats
Average Weekly Breakdown
| Workouts | Weekly Average | Longest Workout |
|---|---|---|
|
Run
x5
|
04:19:00 | 02:00:00 |
|
Day Off
x2
|
—— | —— |
| Workouts Per Week | Weekly Average | Longest Workout | |
|---|---|---|---|
|
|
04:19:00 | 02:00:00 | |
|
|
—— | —— |
Training Load By Week
This plan works best with the following fitness devices:
- Heart Rate Monitor
- 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.
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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.