Lap Distance Adjust

Is there any discrepancy between the GPS measurement and the distance displayed on the course during the race? In long-distance marathons and ultra-marathons, errors cannot be ignored. In this data field, when you press the lap button, the distance is rounded off to the nearest kilometer of the total distance at that time to make the distance perfect. If you press the lap button at the starting line during gross time measurement, the point will be the 0m point if it is within 500m from the start. The estimated goal time will be recalculated at that distance. Estimated finish time displays the estimated time when running the remaining distance at the current lap pace. Adjustments are also made during auto laps, so if auto laps are not in km units, the overall distance error will increase. Note that since this is a data field, it does not affect the recorded measurements. Supports metric only. Miles don't work.