20 Week Advanced Half Distance Plan: Built for Progress

Many advanced plans are boring because they rely on repetitive volume. This 20 week program is for athletes with a strong running and cycling base who want their swimming to match that level. We included a variety of sessions to keep you engaged while making your movement through the water more efficient. This plan replaces generic training with science based sessions that have a clear purpose, ensuring you arrive at the start line ready to race.

How You Will Succeed

• Better Efficiency: Move through the water with less effort so you have more energy for the bike and run segments.


• Personalized Pacing: Every session uses your targets so you know exactly how hard to work. No more guessing.


• Energy Control: Manage your effort on the bike so you have strong, capable legs for the half marathon finish.

The Science of Your Progress

• Sustained Speed: Targeted intervals help you hold a faster pace for longer periods without fading.


• Saving Energy: Improve how your body uses fuel during the bike leg so you do not hit the wall during the run finish.


• Better Technique: Simple focus points help you swim faster and run with improved form. All swim sessions are written by a professional swim coach.


• Aerobic Ceiling: High intensity sessions increase your top speed, making your target race pace feel much more manageable.

Your 20 Week Roadmap

• Weeks 1 to 4: Foundation. Establish benchmarks and build the base stamina needed for high quality work.


• Weeks 5 to 8: Adaptation. Safely increase your training volume as your body adapts to the workload.


• Weeks 9 to 12: Capacity. Focus on sessions that boost your ability to handle the distance comfortably.


• Weeks 13 to 16: Simulation. Hone your race pace with efforts that mimic real race conditions.


• Weeks 17 to 20: Peak. Reduce training volume while keeping quality high so you feel powerful on race morning.

This Plan Is For You If:

• Front Pack Swimmer: You expect to exit the water in the front third and want a professional plan to maintain that lead.


• PB Chaser: You want a professional schedule designed to help break your personal records.


• Experienced Competitor: You are ready for a structured plan that values quality and variety over just doing more miles.

Requirements and Inclusions

You should be able to swim 100m faster than 1:50, cycle for 2 hours, and run for 1 hour.

• 20 weeks of training designed for impact.


• 7 to 10 sessions per week: 2 swims, 3 bikes, 3 runs, and 2 strength sessions.


• 1 strategic rest day to allow your body to recover and get stronger.


• Email support for whenever you need help or motivation.

Check out our other Half Distance Training Plans Here

Take the Next Step

Don't leave your next race to chance. Follow a system built for your specific needs. Trust the process and reach your true potential.