Free Zwift Custom Workout: 40/20’s FTP Booster

Chief Correspondent

FREE Zwift Custom Workout Plan – 40/20’s FTP Booster

As part of the TRI247 Workout Series on Zwift we now have available from last night (3rd October), the ‘40/20’s FTP Booster‘ custom workout file used and set by TRI247 Editor, John Levison, for the latest group workout.

You can also find links to the files of all of our previous sessions below too.


The session

After a progressive warm up and a short set of ‘primer’ efforts to get the legs ready, this session is built on four sets of ’40/20’s’. In these you do 40 seconds ‘on’ (well above FTP effort, approaching VO2 Max power), followed by 20 seconds ‘off’ easy – but short – recovery. The absolute power numbers are not high – it is the repeating them, with the short recovery, many times, which is how the work is delivered.

As you move through the session, the length of each set reduces from 10 reps in the first block, and then on to 8, then 6, then 4 for the final block. However, remember that as you progress through the hour, the effort of the work done accumulates fatigue and so while the number of reps is reducing, it doesn’t mean that it is necessarily easier! In my case, the final set of 4 reps was probably the toughest element.

It’s a good session – give it a try and see how you get on.

You can download the file here (and check out the installation instructions below):

TRI247 Workout Series: ’40/20’s FTP Booster’ DOWNLOAD

TRI247 Workout Series Zwift 40/20's FTP Booster

Custom Workout downloads from previous Zwift sessions:

For details on how to add workout files to Zwift:

The .ZWO file stands for a Zwift Work-Out file. When someone creates a custom workout (whether it be you, a friend, or a coach), Zwift generates a .ZWO file that contains the entire workout. You can share it with your friends or other Zwifters – or add their workouts to your device – by following the steps below.

PC / Mac

Go to your Documents\Zwift\Workouts folder, find the “.zwo” file, and send it to your friend. Any .zwo files you move to your Documents\Zwift\Workouts folder will be added to your custom workouts menu the next time you launch the game.


In order to add custom workouts to iOS, you need to also have a computer with iTunes installed. It’s not currently possible to create custom workouts on iOS (as of 01/2017).

  • Plug your device into your computer and open up iTunes.
  • Click on your device in iTunes, then click “Apps” and scroll down to the “File Sharing” section.
  • You should see Zwift listed, and it should have a “Zwift” folder. Click that, click “Save To,” and save it to a location of your choice.
  • Find the saved Zwift folder, and copy all the workouts you want into the Zwift/Workouts folder
  • Go back to iTunes, click “Add,” and choose the Zwift folder with the new workout files. You’ll want to “replace” the folder on the device with your newly modified folder.
  • Click “Sync” to save the changes to the device.

When you start Zwift, they will show up in your Custom Workouts section at the bottom of the available Workouts.

Source: Support Zwift 

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