Gun Time versus Chip Time
Race results and awards should be based on official time or GUN TIME (the time from the start gun to the crossing of the finish line), according to IAAF rules. They should not be based on net times found by subtracting the time of crossing the start mat from the time of crossing the finish mat, if chip timing is used with a start mat. Chip times can be displayed on the official results as well as the gun times, but should not be used to sort the finishers. Net chip times are for personal interest only. Make sure your timing company understands that you need the results and awards based on gun time, and communicate to the participants that this will be the case.
Timex Series rankings are based on gun times. The only exception is the Sun Run, due to the wave starts in this event.
