

16 Week Beginner Half Distance Plan: Not Your Average Training
Most beginner plans are boring. They rely on the same slow miles that lead to stagnation. This 16 week program is different. Built for the athlete stepping up to the 70.3 distance for the first time, we focus on sessions with a clear objective. You will follow a science based schedule that makes you stronger and faster, ensuring you reach the finish line ready to race rather than just hoping to survive the day.
How You Will Succeed
- Finish with Confidence: Follow a safe, steady build for the 1.9km swim, 90km bike, and 21.1km run.
- Personalized Pacing: Stop guessing how fast you should go. Every session uses your personal pace targets to ensure effective training for your current fitness level.
- Energy Control: Learn to manage your effort on the bike so you still have strong legs for the half marathon finish.
The Science of Your Progress
- Aerobic Efficiency: Improve how your body burns fuel to avoid hitting the wall. This is the key to a strong finish.
- Race Speed Practice: Train at the exact speeds you need to hold on race day so they feel natural and controlled.
- Better Technique: Simple focus points help you swim faster and run with less effort. All swim sessions are written by a professional swim coach.
- Mental Readiness: Your plan includes specific rehearsal sessions so you know exactly what your body can do before you reach the start line.

Your 16 Week Roadmap
- Weeks 1 to 4: The Base. Build a consistent routine and the foundational fitness you need for the work ahead.
- Weeks 5 to 8: Speed and Skill. Introduce sessions that refine your technique and build the speed needed for long distance endurance.
- Weeks 9 to 12: Race Simulation. Focus on brick workouts and efforts that mimic real race conditions to build your confidence.
- Weeks 13 to 16: Peak and Taper. Reduce total training volume while keeping quality high so you feel powerful on race morning.
This Plan Is For You If:
- First Time Half Distance: You want a professional schedule to guide you through your first 70.3 experience.
- Front Pack Swimmer: You have a strong swimming background and want a plan written by a pro swim coach to maintain your edge.
- Goal Oriented Beginner: You prefer structure over a random schedule.
Requirements and Inclusions
To get the best results, you should be able to swim 100m faster than 1:50, cycle for 60 minutes, and run for 40 minutes.
- 16 weeks of structured training syncing directly to TrainingPeaks.
- 5-8 sessions per week including 2 swims, 3 bikes, 2 runs, and 1 strength session.
- 2 strategic rest days per week to allow your body to rebuild and get stronger.
Check out our other Half Distance Training Plans Here

Take the Next Step
Don't leave your first race to chance or waste time with a boring plan. Follow a system grounded in science and built for your specific needs. Trust the process and cross that finish line with a smile. Let’s get to work.

With over a decade of professional swim coaching and an international triathlon background, I help beginners and developing athletes build sustainable habits for endurance sport. I coach athletes currently training under 12 hours a week who may not have grown up in sport. My approach prioritises clarity, patience, and purpose behind every session, ensuring training fits around your life without unnecessary pressure.