
Get the 80/20 Endurance Advantage!
Featuring the proven 80/20 intensity balance described in Fitzgerald and Warden's bestselling book 80/20 Triathlon, this Half Distance Level 2 training plan will provide you with the same workout structure used by the most successful triathletes in the world.
Who is this plan for?
This plan is a good fit for competitive triathletes with a goal of finishing their next Half Distance Triathlon in a personal-best time. Choose it only if you have previously completed at least one triathlon of any distance or you have a strong history in one of the three disciplines. You should be comfortably able to swim, bike, and run for an hour and complete 6 total hours of aerobic exercise over seven days before you begin.

How Do I Measure My Intensity?
This plan presents run workout intensity targets by Pace, Bike Heart Rate and swim by Pace. Other intensity type versions of this plan are also available. Each workout can be exported to a supported device, which will automatically guide you through the session with duration, lap, and intensity prompts. See our Structured Workout page for more information.

Do You Have a Guarantee?
Not sure which level is right for you? Review our Level Comparison Charts to find the best fit. Our Intensity Metric Guarantee allows you to switch to a different intensity type for your run (HR, PACE and POWER) and bike workouts (HR and Power) with your purchased level and distance plan.
Does the plan include Strength Training?
This plan is paired with an optional Free or Premium Strength Training plan designed specifically to fit and complement this plan.

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80/20 Endurance is the creation of Matt Fitzgerald and David Warden. Based on the breakthrough books 80/20 Running and 80/20 Triathlon, runners, triathletes, and other endurance athletes improve the most when they consistently do 80 percent of their training at low intensity and the other 20 percent high intensity. The typical endurance athlete spends only 50-70 percent their total training time at low intensity. The solution? An 80/20 training plan that ensures the optimal intensity balance.