20 Week Advanced Half Distance Plan: Built for Progress

Most advanced plans are boring because they rely on repetitive volume. This 20 week program is different. We included a huge variety of sessions to keep you engaged while helping you move through the water more easily. It is for the athlete who is already strong on the bike and run but needs their swimming to match that level. 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: Focus on moving through the water with less effort so you have more energy left for the bike and run.


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


• Energy Control: Learn to manage your effort on the bike so you still 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.


• Better Technique: Simple focus points help you swim faster and run with better 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 endurance needed for higher intensity work.


• Weeks 5 to 8: Adaptation: Safely increase 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 volume while keeping quality high so you feel powerful on race morning.

This Plan Is For You If:

• Land Strong Athlete: You are a good cyclist and runner but want your swimming to be just as effective.


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


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

Requirements and Inclusions

You should be able to swim 100m in roughly 2:30 to 3:30, cycle for 2 hours, and run for 60 minutes.

• 20 weeks of training syncing directly to TrainingPeaks.


• 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.

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.