Training Peaks Virtual allows you to upload your own .GPX file to ride the equivalent route (distance, elvation gain, grade etc) on their virtual platform. 

Below are .GPX courses that I may have assigned to your training. Once you upload a .GPX file it will live in your TPV environment, and you do not have to upload it again.

You can upload your own .GPX files either routes you have ridden that you download from Garmin or Wahoo or rides you create from platforms like Strava or Ride with GPS. Please note it must be a .GPX file (.fit files will not work).