28-Week 70.3 Half Ironman Triathlon Training Plan | EveryDayTri

This 28-week 70.3 triathlon training plan from EveryDayTri is designed for athletes who want a longer, gradual build toward a Half Ironman / 70.3 distance triathlon.

With over six months of structured training, the programme allows you to steadily develop swim, bike, and run endurance, build durability, and refine pacing strategies for the demands of the 70.3 distance.

Training sessions are primarily zone-based, using heart rate, pace, or power, while also incorporating Rate of Perceived Effort (RPE) to help athletes learn how different intensities should feel during longer efforts.

The plan also includes scheduled testing weeks throughout the programme, allowing you to reassess your fitness and update training zones so that your workouts remain accurate as you progress.

Perfect For:

Athletes preparing for their first 70.3 / Half Ironman

Triathletes progressing from Olympic distance

Athletes wanting a longer 28-week preparation

Anyone training with heart rate, pace, power, or TrainingPeaks zones

What’s Included:

Structured swim, bike, and run workouts

Long endurance sessions to build race-day durability

Brick workouts to simulate race conditions

Testing weeks to measure progress and update zones

Gradual progression with built-in recovery weeks

Guidance using training zones and perceived effort

Coach support to help adjust training if needed

By the end of the programme, you’ll be fitter, stronger, and fully prepared to confidently complete your 70.3 distance triathlon.

Created by EveryDayTri — practical triathlon training designed for real life.

Learn more: www.everydaytri.com