Hi Kazu, I’m assuming that you are asking how to get your TrainingPeaks workouts to show up in your personal calendar…
You can sync your TrainingPeaks calendar to any 3rd party calendar app that supports web-calendars (.ics).
TrainingPeaks describes several different ways of syncing to your preferred calendar on this page:
https://help.trainingpeaks.com/hc/en-us/articles/204072184-Sync-your-calendar
With this TrainingPeaks .ics subscription, there can be a significant delay syncing to your calendar – it may take several hours for the initial workouts to show up in your calendar.