How to create custom workouts for MyWhoosh with AI
RestOrTrain saves your workout to Intervals.icu, which passes it to MyWhoosh for you to ride from its calendar on the planned date. MyWhoosh is an indoor cycling app with its own workout library and a web Workout Builder.
RestOrTrain plans your season and week, then builds each session for you and the day. Today's workout is already on your calendar, so there is nothing to pick. It uses your rides, plan and this week's calendar, plus sleep and HRV from a connected source that supplies them. Ask why it chose a session and it explains the decision from your own training.
Ask for today's trainer session
When you have less time for your planned threshold session, ask:
I only have 40 minutes on the trainer before work. Fit today's threshold into that and put it on my calendar, every step in watts.
It adjusts the session to fit. Check the revised workout on today's calendar. If it is only in the chat, ask it to save it.
For another workout, a word such as "endurance" is enough. You can also ask it to adjust any session.
Saved workouts go to every connected platform with Send workouts on. The same session can reach your bike computer or Zwift. Sending workouts is free.
Connect Intervals.icu in RestOrTrain
Open Settings, then Data Sync, and choose Intervals.icu. Sign in and approve access to read activities and wellness and write to the calendar. Send workouts is on when you connect.
Before opening MyWhoosh, find the session on its date in your Intervals.icu calendar. Check the workout blocks and their power targets. If those are correct, the workout has arrived from RestOrTrain correctly.
Link MyWhoosh to the same Intervals.icu account
- Sign in on the MyWhoosh website and open your connection settings.
- Choose Intervals.icu.
- Sign in to the same Intervals.icu account you connected to RestOrTrain.
- Approve access and check that the connection is active.
Open the calendar in the MyWhoosh app you ride with. Find the workout on its planned date and check the duration, efforts and recoveries before starting.
Fix a missing workout or wrong watts
If the workout is missing from Intervals.icu, check its date in RestOrTrain. Confirm that Intervals.icu is connected with Send workouts on and that you allowed calendar access. Reconnecting asks for that permission again. To resend the session, open it and tap Sync to Intervals.icu.
If the workout is in Intervals.icu but missing from MyWhoosh, check the linked account in MyWhoosh's connection settings. Then check the workout's date in the calendar of the app you ride with. If both are correct, contact MyWhoosh support with screenshots of both calendars.
If the watts differ, check FTP first. Set the same FTP in RestOrTrain, Intervals.icu and MyWhoosh.
If only the easy blocks differ, look for steps written as zones, such as Z1. Intervals.icu calculates those targets from its own zone settings. Ask for every step in watts, then compare the workout previews, including the easy blocks.
After the ride
MyWhoosh can upload the completed ride to Intervals.icu, and RestOrTrain imports it from there. A ride that matches the planned workout can get a Workout Score out of 100, with an explanation.
Add how the threshold efforts felt to your ride notes. It uses those notes and the completed ride alongside your training history in later recommendations.
You can also upload a MyWhoosh .fit file in RestOrTrain under Settings, Manage Data.
Build the workout by hand or ride with no second app
If you need the exact session today and the synced watts still look wrong, recreate it in MyWhoosh's web Workout Builder. Use the duration and power target for each block from your planned workout. Check the finished session before riding.
To ride within RestOrTrain, use its indoor workout player. It is free for every account on iPhone and Android and plays planned cycling workouts or sessions requested in chat.
Connect a Bluetooth smart trainer that supports FTMS, a Bluetooth standard for controlling fitness equipment. A heart-rate strap is optional. Every workout step needs a power target.
ERG mode holds each step's target watts automatically, and you can turn it off. The minus and plus controls change intensity by 1% per tap. There is no virtual world.
Frequently asked questions
Can AI create custom MyWhoosh workouts?
Yes. RestOrTrain builds the session from your training and saves it on your calendar. With both connections set up, it reaches MyWhoosh through Intervals.icu.
Does RestOrTrain send workouts directly to MyWhoosh?
No. It sends them to Intervals.icu. MyWhoosh handles the connection from there. Both connections must use the same Intervals.icu account.
Where should I look for the synced workout?
Open the calendar in the MyWhoosh app you ride with and select the workout's date. If the session is missing, check that date in Intervals.icu first.
RestOrTrain plans your season and puts today's session on your trainer or Garmin.
A few questions a month are free.
Published October 8, 2026, updated October 10, 2026