12-Week First Half Marathon Plan

Your Guide to Finishing Your First 13.1


Plan Overview

Ready to tackle your first half marathon? This 12-week plan is designed specifically for beginner runners aiming to comfortably finish the 13.1-mile distance. The primary focus is building endurance safely through consistent easy running and basic strength work.

This plan is ideal if you're currently running about 3 times per week, can comfortably run 3-4 miles, and have completed a long run of at least 6 miles (starting base ~15 mpw). It starts with 3 required running days and adds an optional 4th run later. The plan includes scheduled cutback weeks for recovery and simple bodyweight strength training to help prevent injuries.

Navigate this guide using the menu above. Start with the Plan Dashboard for key stats. Dive into The Full Plan for weekly details. Understand the Strength Training Philosophy, refer to the Plan Legend, and use the RPE Scale to guide your effort. Remember, the goal is completion - enjoy the journey!


Plan Dashboard

Visualize the 12-week journey, understand the key metrics, and see how the mileage progresses towards race day.

12 Total Weeks
28 Peak Mileage
11 Longest Run (mi)
3-4 Run Days / Week

Total Weekly Mileage Progression


The Full Plan

Explore the weekly schedule broken down into four focused phases. Use the tabs to navigate through the plan. Remember to listen to your body and take extra rest if needed.

Phase 1: Foundation (Weeks 1-4)

Goal: Build consistency with 3 runs per week. Gradually increase the long run distance. Start incorporating basic strength and core exercises.

Week Monday Tuesday Wednesday Thursday Friday Saturday Sunday Total
Wk 1 REST 4 mi (EASY) STRENGTH: 20min
+ 10min Core
4 mi (EASY) REST LR: 6 mi (EASY) REST or 2 mi (R) 16 mi
Wk 2 REST 4 mi (EASY) STRENGTH: 20min
+ 10min Core
5 mi (EASY) REST LR: 7 mi (EASY) REST or 2 mi (R) 18 mi
Wk 3 REST 5 mi (EASY) STRENGTH: 25min
+ 10min Core
5 mi (EASY) REST LR: 8 mi (EASY) REST or 2 mi (R) 20 mi
Wk 4
(Cutback)
REST 3 mi (EASY) STRENGTH: 20min
+ 10min Core
4 mi (EASY) REST LR: 6 mi (EASY) REST or 2 mi (R) 15 mi

Strength Training Philosophy (First Half Marathon)

For a first half marathon, strength work focuses on building basic durability and preventing common running injuries. Keep it simple and focus on good form.

Strength (All Phases)

Goal: Build full-body stability and strength to support your running. Focus on form.

Sets/Reps: 2-3 sets of 10-15 reps. Bodyweight only.

Sample Exercises (Pick 4-5 per session):

  • Bodyweight Squats
  • Bodyweight Lunges (Forward & Reverse)
  • Glute Bridges (Double & Single Leg)
  • Push-ups (on knees or toes)
  • Plank
  • Bird-Dog
  • Calf Raises

Core (All Phases)

Goal: Build a stable core to help maintain good running form.

Sample Routine: Choose 3-4 exercises. Perform each for 30-45 seconds, rest 15-30 seconds. Repeat for 2 rounds.

Sample Exercises:

  • Planks (Front & Side - hold as long as possible with good form)
  • Bird-Dogs
  • Dead Bugs
  • Crunches
  • Glute Bridges

Taper (Wks 11-12): Reduce STRENGTH sessions to 15-20 minutes, focusing on light bodyweight movements. Continue with Core work.


Plan Legend

LR
Long Run
EASY
Easy, conversational pace (RPE 3-5)
R
Recovery run (very slow, RPE 2-3) or Rest
Uptempo
Pick up the pace slightly (RPE 6) for the time listed.
Strides
A ~20-30 sec burst. Gently build speed, hold briefly, decelerate. Full recovery walk.
STRENGTH
Dedicated strength session. See Philosophy section.

RPE Scale (Rate of Perceived Exertion)

1-2
Very Easy
3-5
Easy
6-7
Comfortably Hard
8-9
Very Hard
10
Max Effort
RPE 1-2: Very Easy
Like light walking. Corresponds to (R) Recovery pace.
RPE 3-5: Easy
Comfortable, conversational. This is your EASY pace and main effort.
RPE 6-7: Comfortably Hard
Breathing harder, can speak short sentences. This is your Uptempo effort.
RPE 8-9: Very Hard
Can only speak single words. This is your Strides effort.
RPE 10: Max Effort
All-out sprint. (Not used in this plan).