In reply to yorkshireman:
> (In reply to Chris the Tall)
>
> Is there any way to import all those old runs from Garmin Connect into Strava? You can export from GC as CSV but I can't see a way of getting that data in. It would be great to have all that rather than starting from scratch.
I found this tool which I thought others might find useful.
http://www.sideburn.org/garmin
If you give it the username/password of your Garmin Connect account it will download all your entries as TCX files. You can then bulk upload these to Strava.
It seems legit, but obviously it would be sensible to make a temporary password change to your GC account and then change it back after using this.
I'm now in the process of importing >300 entries into Strava