
Train smart with a half-distance triathlon plan by Joe Friel, best-selling author and internationally recognized endurance coach.
- Prepare for a half-distance triathlon: swim = 2k, bike = 90k, run = 21.1k
- Plan is intended for intermediate triathletes over age 50.
- Plan is for 12 weeks of Base training, to be followed by 12 weeks of Build-Peak plan training.
- Receive two follow-up emails from Joe with more information on the plan (must provide email address at time of purchase).
- If plan is not working for you within the first 2 weeks, you can switch to a plan of equal value or receive a full refund.
“Joe Friel’s wealth of knowledge in triathlon is astounding.” —Siri Lindley, triathlon world champion
“Joe Friel is one of the world’s foremost experts on endurance sports.” —Outside magazine
This half-distance Base plan for the over-50 triathlete was designed using principles from Joe's
Triathlete’s Training Bible. Having this book handy will help navigate the workouts presented in the training plan and is strongly recommended.
Who is this plan for?
This plan is intended for the over-50 triathlete, but it may also be used by younger athletes who take longer to recover after hard workouts. This is a fairly challenging training plan; do not purchase if you are not at least an intermediate triathlete! By the end of 12 weeks you will have excellent Base fitness and be ready to start the Build-Peak period plan 12 weeks prior to your A-priority, half-distance race.
When should you start the plan?
Start about 24 weeks prior to your A-priority race. Following this 12-week plan will get you ready to start the half-distance Build-Peak period, which specifically prepares you for your A-priority race. You should be able to swim 1 hour, bike 1.5 hours, and run 1 hour before starting this plan. You should also be able to frequently do two workouts per day. You will need heart rate (bike and run) and power (bike) zones set before starting this plan. (For a detailed description of how to set your zones for heart rate, power, or pace,
read this.)
What is the weekly volume?
Over 12 weeks, you will increase your weekly volume from about 9 hours to around 14 hours. A typical week includes 3–4 swims, 3–4 bikes, 3–4 runs, and 1–2 strength workouts. Exceptions are the R&R weeks every third week with volume significantly reduced for 4–5 days and self-testing at the end of the week to measure progress. Note that this plan is based on Joe's "5-2" weekly training method, which he uses for his own training. This means there are 5 easy days of training each week with 2 hard days (Thursdays and Sundays). The 2 hard days become increasingly difficult and each have 1–2 challenging workouts. But with 2–3 easy days between them, you can recover and be ready for each of the hard days.
Do you need any devices or books?
You will need a power meter to gauge the bike intensities of this plan. The workouts use the TrainingPeaks “Workout Builder” so that they may be uploaded to a device (power meter, GPS, etc.). (For more information on compatible devices and apps and how to export the workouts,
read this. However, it’s not necessary to upload the workouts in order to use this plan.)
To use this plan, you should have a copy of the 5th edition of
The Triathlete’s Training Bible (published 2024) as you will be referred to certain portions of the book that are associated with the workouts in the plan. You may purchase the book
here.

An endurance coach since 1980, Joe Friel has worked with triathletes, cyclists, and runners around the globe. He trains coaches and assists various national federations and national Olympic team staff. He also consults with professional athletes and sports-related businesses. Coach Friel occasionally offers personal camps and seminars for clubs and teams. He has authored 17 books on training including the best-selling Training Bible series. For more info, go to his blog at www.joefrielsblog.com.