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Time Challenged Cyclist - Undulating Periodization Base and Build - WKO iLevels

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Time Challenged Cyclist - Undulating Periodization Base and Build - WKO iLevels


Tim Cusick - Coach of World and National Champions

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20 Weeks

Plan Description

The Time-Challenged Cyclist: Undulating Periodization Base and Build Phases - WKO iLevels

written by Tim Cusick, TrainingPeaks WKO product leader and master coach with BaseCamp

WKO iLevels plan

Plan overview

Let’s face it: finding the time to train can be a challenge. Life, kids, and work leave a lot of cyclists with about 6-8 hours a week to train. This isn’t much, but it doesn’t mean you can’t still get in great shape and accomplish your event or riding goals. This training plan breaks the mold of the traditional linear periodization system (constantly adding more and more time to training as a way of building fitness) by introducing a system of undulating periodization consisting of variable micro-cycles that consistently introduce new exercise stimuli to the body to improve fitness and performance.

The theory is simple: the body likes a pattern but also needs change to continue to improve. This plan features five unique, four-week macrocycles that undulate your training. This means that your body has four weeks to adapt and get used to a certain pattern and format of training before you move on to something different, requiring your body to constantly be in an adaptive state.

The plan is designed for cyclists with at least 1-3 years of training. It kicks off with a traditional aerobic base-building cycle, then quickly progresses to more challenging cycles of high-intensity interval training (HIIT), intensive aerobic building, and max aerobic intervals before ending with a second cycle of HIIT.

Included with your plan:
- User guide
- Testing protocol
- Coaching tips and encouragement
- Free strength training routine from Menachem Brodie

To use this plan, you will need to have a power meter and the TrainingPeaks WKO software (if you don't have WKO or if you don't train with power, you can still get these cutting-edge workouts and plans; just search for the Classic versions). This plan uses the advanced iLevels training protocol developed by Dr. Andy Coggan and the new training metrics available in WKO, like FTP/FRC, FRC, and PMAX. Learn more about WKO or watch Coach Cusick’s free educational WKO webinars.

We've got more plans!

Tim Cusick has written dozens of training plans for many different areas of cycling: road, gravel, time trial, mountain bike, cyclocross, indoor training, and more. Click here for a full list of his current plans by sport type.

In addition to his coaching experience, Tim is the TrainingPeaks WKO product leader and the founder of BaseCamp.


Click here to view a list of frequently asked questions about our training plans. If you don't find your answer there, please email us directly.

How it Works

Load Your Plan

Quickly view upcoming workouts in the TrainingPeaks app.

Workout and Analyze

Upload completed workouts from your favorite tracking app or device.

Track Your Progress

Get feedback, stay on top of your training and perform at your best.

Learn More

Training Plan Sample Week


Average Weekly Breakdown

Workouts Weekly Average Longest Workout
Bike x6
07:34:00 02:30:00
Day Off x2
—— ——
Workouts Per Week Weekly Average Longest Workout
07:34:00 02:30:00
Day Off
—— ——

Training Load By Week

This plan works best with the following fitness devices:

  • Power Meter

All supported devices

Tim Cusick


Tim Cusick is a world-class cycling coach, a leader in data analytics for endurance sports, an educator, and an innovative business leader.

As a coach, he’s compiled an impressive history of success and jerseys. His approach to coaching peak performance focuses on the whole athlete and the components of success for the whole athlete. Tim works with Olympians, world champions, and more, including Amber Neben and Rebecca Rusch.

  • This plan includes a Free Basic TrainingPeaks Account.
  • Access your training plan anywhere on the TrainingPeaks mobile and desktop apps.
  • Track your performance with robust data tracking and detailed graphs.
  • Plan for your event in the TrainingPeaks calendar.
  • Track your weight, sleep, hours, fatigue and stress while you train.
  • Completed workouts sync with popular apps like Garmin and Wahoo. Learn More
  • If plan includes Structured Workouts, then planned workouts sync to compatible devices and guide you through workouts in real time. Learn More

Refund Policy

This plan is protected by our Refund Policy and may, with the author's approval, be exchanged for a plan of equal value from the same author.

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