12-Week Intermediate Half Marathon Training Plan
Are you ready to elevate your half marathon performance and achieve a new personal best?
This 12-week plan is tailored for intermediate runners aiming to make real progress. With clear structure, purposeful sessions, and a race-specific focus, it’s designed to help you train smarter and run your best race yet.
Achieve Your Goals
- Peak Performance: Reach your full potential with a proven training approach.
- Build Endurance & Speed: Improve your stamina and pacing to sustain your goal race pace.
- Stay Motivated: Varied, engaging sessions keep you progressing and excited to train.
- Train Efficiently: Time-efficient sessions averaging just over an hour fit into a busy lifestyle.
- Injury Resilience: Complete one strength session per week to make you stronger and reduce injury risk.
Targets of the Plan
- Balanced Progress: With 4 structured runs per week, every session is designed to challenge you while fitting into your busy schedule.
- Proven Training Structure: From building your base to tapering before race day, this plan ensures steady, effective progress.
- Seamless Smartwatch Integration: Follow your sessions live and track your progress.
- Clear Guidance: Each workout comes with a detailed explanation so you’ll always know the purpose behind the session.
12 Weeks of Detailed, Progressive Training
- Weeks 1-4: Base Endurance
Focus on building a strong foundation with steady endurance runs and tempo workouts, preparing you for more intense sessions.
- Weeks 5-8: Threshold Running and Building Distance
Push your limits with threshold runs and increased distance, building strength and endurance for longer, tougher runs.
- Weeks 9-12: Race Pace Running and Tapering
Hone race pace efforts, sharpen endurance, and taper to ensure you’re fresh and ready for race day. This block fine-tunes your performance.
Time-Efficient Sessions
- Average session length just over an hour.
- Shorter midweek sessions to fit in with a busy working week.
Who Is This Plan For?
- Intermediate Runners: Designed for runners with some experience looking to improve their performance and hit new goals.
- PB Chasers: Perfect for those aiming to achieve their fastest half marathon yet with a structured, progressive approach.
- Time-Conscious Runners: Ideal for athletes seeking effective training that fits into a busy schedule with four runs per week.
- You should be able to run for an hour and a half before starting this plan.
What You Get
- 4 runs per week with a focus on making the most of the time on your feet.
- 3 Rest days per week.
- 1 Strength session per week focused on your stability, mobility and strength.
- A fully integrated training calendar for seamless scheduling.
Check out our other
Half Marathon Training Plans Here
Your Next Level Awaits
This plan will help you develop the endurance, speed, and mental toughness required to excel on race day. Take on the challenge, embrace the journey, and achieve heights you never thought possible!
Efficient Endurance provides structured coaching for committed professionals preparing for long-distance events. I remove the decision load of training through clear planning and consistent accountability. My science-informed approach ensures sustainable progression for Ironman, marathons, and triathlons. I also have 10 years of experience as a professional swim coach at the top levels, offering technical depth that ensures efficiency in the water and confidence on race day.