Nike + iPod: How to reset and recalibrate your Nike + iPod if you get unexpected results

When you calibrate your Nike + iPod, make sure you are running or walking at a steady, natural pace for the specified calibration distance. If you run or walk with an inconsistent pace or travel a distance that is over or under the expected calibration distance, you may get unexpected results (such as incorrect distance of a workout). For best results, first reset the calibration and then recalibrate, instead of just calibrating again.