The split time function was mentioned earlier but it will be so beneficial for all you runners out there that it deserved its own section. You see, split time is basically your overall time at any given point in your run. Think of it as a waypoint on a GPS unit. Say you are running a multiple mile race, for example, you could use a split time for each mile to see how fast you are going. This merely allows you to track your progress in a better way.