Level 0: Finish Your First Half Marathon Training Plan [12 Weeks]

The Finish Your First Half Marathon Training Plan is a 12-week plan for runners who already run a 5k, building to about 24 miles (39 km) a week to reach 13.1.  The Level 0 Finish Your First Half 12-Week Half Marathon Training Plan is crafted for runners who want to cross the finish line with confidence. Whether you're new to running or returning after a long break, this plan is designed to help you build endurance, develop strength, and achieve your race day goals.

Plan at a glance:

• Length: 12 weeks
• Weekly volume: builds to about 24 miles (39 km)
• Race: half marathon (13.1 miles, 21.1 km)
• Best for: runners who can already run a 5k and want to finish a half
• Key work: easy running, long run build
• Formats: miles, kilometers, or time based

This plan is for you if...

• You're currently running around 10 miles/16 km per week and can comfortably complete a 5k at any pace
• You want to build your distance and endurance to run a strong half marathon with confidence!

What's Included:

• 12-Week Training Schedule: A structured plan to progressively build your running endurance, with equivalent schedules in miles, kilometers, and time-based training options.
• Post-Race Recovery Plan: A 4-week recovery schedule to help your body bounce back after the race.
• Flexible Training Approach: Easily adaptable to your schedule, allowing you to shift your long runs and rest days as needed.
• Beginner-Friendly: Designed for runners who can complete a 5k and have been running 2-3 times per week consistently.
• Extensive Resources:
  • Goal-Setting: Clear strategies to set and achieve your half marathon goals.
  • Easy Running & RPE Guides: Learn to pace yourself effectively using heart rate zones and Rate of Perceived Effort (RPE) for optimal training.
  • Hydration & Fueling: Detailed advice on how to stay hydrated and fuel your body during training and on race day.
  • Basic Strength Training: Simple yet effective strength exercises to complement your running and reduce injury risk.
  • Run Execution Details: Step-by-step guidance on how to execute each type of run in your plan, ensuring you get the most out of your training.

Key Features:

• Approachable Start: This plan starts with 3 runs per week and slowly builds you to 4 runs per week over the course of your training.
• Endurance Focused: Most of the training is done in your Easy Effort zone, helping you build endurance without to go the distance.
• Optional Tune-Up Races: Includes opportunities for a 5k and 10k race or time trial to gauge your progress and set realistic race day goals.

FAQ

Q1. How long does it take to train for a half marathon?

12 to 20 weeks depending on your base. Plans here run 12 weeks from a 5k base up to 20 weeks from the couch.

Q2. Which half marathon plan should I choose?

Couch to Half from a 1 mile walk or run (20 weeks), Finish Your First from a 5k base (12 weeks), then Beginner, Novice, Intermediate, and Advanced by mileage from about 17 to 53 mi or 27 to 85 km per week.

Q3. How many days a week will I run?

Usually 4 to 5, with easy runs, a workout or two, and a weekly long run, in miles, kilometers, or time based formats.

Q4. How long is the longest run in a half marathon plan?

It scales with your level, and each plan builds your long run gradually toward race distance.

Q5. Can beginners run a half marathon?

Yes. The Couch to Half and Finish Your First plans are built for first timers.

Why Choose This Plan?

This plan isn’t just about crossing a half marathon off your bucket list; it’s about finishing strong and ENJOYING the process. With a focus on endurance and easy effort, you’ll be able to run longer and stronger in a sustainable way, reducing the risk of injury and burnout. The included resources cover everything from goal-setting to proper hydration and fueling, giving you a well-rounded approach to training. Perfect for those who want a realistic, achievable approach to half marathon training, this plan will guide you every step of the way, from your first run to crossing the finish line.

Written by Coach Nick a USATF and RRCA certified Running Coach with 9 years experience and CEO of Running Explained. Every Running Explained plan is built on the same structure, science, and strategy Coach Nick uses with his 1:1 coaching athletes, and is trusted by thousands of runners training for everything from their first 5k to a Boston qualifier. Have a question about this plan? Book a 30-minute call with Coach Nick, or explore 1:1 coaching at runningexplained.com.