Computer reloaded as I deleted a run below the one I wanted to keep! Now I have an activity with 00:00 time recorded and my 10 km is gone. No way this is not fair. Can you get the ANT stick to upload it off the 310xt watch again? It is still on the watch.
I got it back people. I clicked the upload button and then clicked the Forerunner 310XT under 'Detected device'. Then I clicked 'Upload Selected Activities'. If you have deleted an activity off your Dashboard in Garmin Connect, this list tells you it is deleted, but if you have not deleted it off your actual device -- it is still there to go and get again. Once it is off your device, that's it though - your screwed. So, phew! I did not know you could do this. I do know and I hope other do too....now.