Predicts your estimated 10K finish time while you are running the race. No longer do you need to manually calculate your finish time...now you will know 30 seconds into your race if you are on pace to crush your old PR or not. </p><p></p><p>Estimated time is not simply based on current speed. It takes multiple pieces of data into account including your average speed of the entire race, your average speed over the last 60 seconds and the time it has taken to run the current distance. It then mixes those numbers together and comes up with an estimated finish time. Of course if your pace fluctuates a lot minute to minute then the predictor will fluctuate with your pace. </p>