I have a GPS watch that is great for measuring distances and providing feedback during runs. However I find it gets tedious worrying about always wearing it and it detracts from the simplicity of running. Gadgets are what cycling is for right?
If you do want a good measure of your runs distance use google maps Google Maps distance tool.
When you get to a map covering your run in google maps you can select the tab “my maps”. Under my maps there are various third party tools. One is a distance tool that allows you to measure interactively the distance between any number of points. The tool keeps track of the total distance for you.

