12 Week Marathon Plan For Beginner & Intermediate Runners
12 Week Marathon Plan For Beginner & Intermediate Runners
Author
Mike Bentley
Length
12 Weeks
Plan Description
GOAL – Marathon
PLAN LENGTH – 12 Weeks
LEVEL – Intermediate & Beginner
TRAINING FREQUENCY – 4 Runs + 2 Strength Sessions Per Week
Take on your marathon with confidence using this structured 12-week performance plan, designed to guide you from your current fitness level to crossing the finish line strong — and earning that marathon finisher’s medal.
This plan builds progressively, developing your aerobic engine, running efficiency, and durability so you arrive on race day prepared, resilient, and ready to perform.
⸻
WHAT TO EXPECT
You’ll complete:
• 4 structured run sessions per week
Including aerobic development runs, marathon-pace efforts, long runs, and race-specific sessions designed to build endurance and pacing confidence.
• 2 structured strength & conditioning sessions per week
Focused on building strength, improving running economy, and reducing injury risk so you can train consistently throughout the 12 weeks.
Every session has purpose. Every week builds on the last. No guesswork — just smart, progressive training.
⸻
SYNC TO YOUR DEVICE
All sessions are structured and can sync directly to your wearable device, allowing you to train anywhere, anytime. With clearly defined workouts, pacing guidance, and planned recovery, this program keeps you accountable and on track from week one to race day.
⸻
WHO IS THIS PLAN FOR?
This plan is ideal if:
• You’re targeting a 3–4 hour marathon finish
• You’ve completed a half marathon and can comfortably cover that distance
• You’re returning to structured training and want clear direction
• You’re chasing a personal best with a smart, sustainable approach
⸻
PREREQUISITES
Before starting this plan, you should be able to comfortably run for 90mins.
⸻
This is not just about finishing — it’s about building a strong aerobic base, moving efficiently, staying injury-free, and performing when it matters most.
Train smart. Stay consistent. Earn your medal.
How it Works
Quickly view upcoming workouts in the TrainingPeaks app.
Upload completed workouts from your favorite tracking app or device.
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
x4
|
05:29:00 | 04:00:00 |
|
Strength
x2
|
01:26:00 | 00:45:00 |
|
Day Off
x1
|
—— | —— |
| Workouts Per Week | Weekly Average | Longest Workout | |
|---|---|---|---|
|
|
05:29:00 | 04:00:00 | |
|
|
01:26:00 | 00:45:00 | |
|
|
—— | —— |
Training Load By Week
This plan works best with the following fitness devices:
- Heart Rate Monitor
- GPS
- 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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$107.99 USD for the first year, billed yearly.
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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.