Coordinates for start/finish line

Know the best place to get em? Google Earth will give me approx, but looking for exact numbers to plug into my device (not Traqmate). Could also use locations around the track so I can use them for splits. I have entered the points before on the track, but have also had problems with trying to deal with pushing buttons, etc. and at the same time trying to keep up and on line while doing it. It would be a lot safer and less stressful to set it up in advance. I am looking for the tracks in the Southeastern quarter of the US.