RUN:TRACK:RUN was created to solve two main problems.
The GPS-watch is a great tool that has revolutionized running.
But it is far from perfect; the distance recorded can be off by several percents and the accuracy is often lower where most people are running - in the cities.
Here you can use information about tracks, race courses and trails to remove the errors.
Upload your data. The system will automatically identify matching tracks and courses and adjust your data. You can make adjustments like removing the parts where you were resting and download the new data.
Did you run without a GPS-watch? Maybe even indoors? Find your track or race, click "generate GPS-data" and submit the time(s) of your race or workout. Now you can download GPS-data as if you were running with a perfect GPS-watch.