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Running series - 12 weeks 21k (Half Marathon Beginner)+Strength

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Running series - 12 weeks 21k (Half Marathon Beginner)+Strength

Includes Structured Workouts

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


Learn More about Structured Workouts.

Author

Peak3r Coaching

All plans by this Coach

Length

12 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

Designed for Beginner Runners

This 12-week half marathon training plan is created for beginner and recreational runners who want a structured, progressive, and sustainable approach to reaching the finish line with confidence.

It’s ideal for those who:

- Can already run 20–30 minutes continuously

- Have limited time during the week

- Want to reduce injury risk

- Prefer a clear and simple plan without overly complex workouts

Weekly Structure:

The program includes 3 running sessions per week, carefully balanced to maximize results while keeping training manageable.
Each week features:

- 1 Easy Run: focused on building aerobic endurance and improving cardiovascular efficiency at a comfortable pace.

- 1 Quality Session (Controlled Intensity): it includes moderate-paced efforts, pace variations, or progressive runs to improve rhythm control, fatigue tolerance, and overall running efficiency always beginner-appropriate.

- 1 Long Run: the key workout of the week. Distance increases gradually to develop physical and mental endurance and prepare the body for race duration.

- 1 Strength training workout

Progressive and Safe Approach
Training load increases gradually, with lighter weeks included to support recovery and help prevent injuries. The plan guides runners from building an aerobic base to developing race-specific endurance, finishing with a proper pre-race phase.

Main Goals
By the end of the 12 weeks, runners will be able to:
- Complete a half marathon with greater confidence
- Manage pacing more effectively
- Feel stronger and more resilient in the later kilometers

Follow a training structure that can be reused for future goals

Who This Plan Is For:
✔ Beginner runners
✔ First-time half marathon participants
✔ Athletes training 4 days per week
✔ Anyone looking for a simple yet effective plan

❌ Not intended for advanced runners seeking high-intensity or highly specialized training.

Core philosophy: build endurance first, then performance — through consistency, gradual progression, and the right balance between training and recovery.

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
Run x3
02:43:00 02:02:00
Day Off x3
—— ——
strength x1
—— ——
Workouts Per Week Weekly Average Longest Workout
Run
02:43:00 02:02:00
Day Off
—— ——
strength
—— ——

Training Load By Week


This plan works best with the following fitness devices:

  • Heart Rate Monitor
  • GPS

All supported devices

Peak3r

Peak3r Coaching

Peak3r provides personalized, remote, one-to-one coaching for endurance athletes, including runners, cyclists, and triathletes. Our approach is structured, progressive, and designed to fit real life.
Training plans are built using heart rate– and pace-based methods, grounded in physiological thresholds to optimize intensity, efficiency, and sustainable performance.
Feel free to contact us at info@peak3r.com for further details about training plans and pricing.


  • 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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