Yes I los data today after running an 8 mile race ! after crossing the finish line I went to try and save the run and the message was 'battery low' and then an arrow with the word dismiss. I wanted to save the run but couldn't ! did you ever get an answer to your post/?
What device? Might be something still there.
Assuming you pressed Start at the start of the race, but when it was over you couldn't press stop or anything else? Get it charged up, then see if you can view anything in the history of the device. I've never had this device, but I recall something like this happening to mine when it powered off due to low battery. When it came back on after charging it, I was prompted with saving or discarding the activity. If you can save it, then should be able to sync with Garmin Express.
Also, with it connected to your computer you should be able to browse to the folder "Garmin Forerunner 10\GARMIN\NEWFILES"
Depending on your computer Mac or PC, might be mapped as D:\GARMIN\NEWFILES
hi thanks for your suggestions: I did everything you suggested and even went to theYouTube on Garmin Forerunner 10 where they suggested going into the 'history' cue and then 'runs' and records' and it only shows the previous run that I did not the long run I did yesterday. Bummer because I was testing a new run-walk program and wanted to see what my lap speeds were for all 8 miles. (: