10-Week Half Marathon Training Plan for Intermediate Runners

10-Week Half Marathon Training Plan for Intermediate Runners

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Training for a half marathon in 10 weeks is totally doable—especially if you already have a solid running base and are ready to level up. This half marathon training plan (intermediate, 10 weeks) is designed to help you sharpen your endurance, improve your pace, and cross the finish line feeling strong and accomplished.

If you’re comfortable running 4–5 miles and want to chase a personal best or feel confident at the distance, this guide is for you.


Who This Plan Is For

This 10-week intermediate half marathon training plan is ideal if you:

  • Can comfortably run 3–4 times per week
  • Have completed a 10K or half marathon before
  • Are looking to improve your time or train more strategically
  • Want a plan that balances structure with flexibility

Not quite at that level yet? No problem—check out my Half Marathon Training Plan – Level 1, perfect for beginners or those building back fitness.


What’s Inside the 10-Week Plan

An intermediate plan should be more than just mileage. This one includes a variety of run types to help you build endurance, increase speed, and stay injury-free:

🏃‍♂️ Easy Runs

These form the aerobic foundation of your training. Run at a conversational pace to build endurance without burning out.

⏱️ Tempo Runs & Intervals

Boost speed and mental toughness with structured workouts designed to make race pace feel easier.

🗓️ Long Runs

The backbone of your half marathon prep. You’ll build gradually to peak distance, with recovery built in.

💪 Cross-Training & Strength

Incorporate non-running days with cycling, swimming, or strength work to build a well-rounded, resilient body.

😴 Rest & Recovery

Strategically placed rest days help prevent overtraining and support adaptation.


Why 10 Weeks?

A 10-week half marathon training plan is the sweet spot for intermediate runners—it’s long enough to build fitness, but short enough to stay focused and motivated. It’s also ideal if you’ve recently run a race and want to maintain momentum.


Want to Go Deeper? Choose the Right Training Plan for You:

  • 🟢 Level 1 Half Marathon Plan: A great next step after a 10K or first half marathon, with a balance of runs, recovery, and structure.
  • 🔵 Level 2 Half Marathon Plan: For more experienced runners ready to add speed work, longer long runs, and race-specific workouts.

Need Help Personalizing Your Training?

Every runner’s life, schedule, and goals are different. That’s why I offer 1-1 run coaching tailored specifically to you. You’ll get:

✅ A fully customized training plan
✅ Weekly adjustments based on your progress
✅ Direct support, motivation, and accountability
✅ Guidance with pacing, fueling, race strategy, and more

👉 Learn more about 1-1 Coaching here

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