Download all Garmin Connect Rides / Activities web application v2
This will pull all tcx files from your garmin connect account and zip them up for download.
Use at you own risk, this is not a secure site!! Then again it's just a garmin account....
If you're really hesitant about using your password on this site, I suggest changing your
garmin password temporarily for use on this application then changing it back once you have
downloaded your rides.