Name: Half Marathon Race Predictor
Rating: 4.2 (28 reviews)
Author: awedman

UPDATE: I have updated the prediction algorithm to hopefully be more accurate and a little less jumpy when going up hills or slowing down at water stations.  It will use different factors to predict your finish time depending on where you are at in the race.  Please let me know if you have see any issues.

Predicts your estimated half marathon 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. 

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. 

I have recently released a smart predictor data field that will predict multiple distances with a single data field https://apps.garmin.com/en-US/apps/f3801c7a-a654-47fe-905a-cae9d197ed66

If you have questions or issues with the app please post them here https://sites.google.com/site/andysconnectiqapps/news/racepredictors

Release Notes
[Version 1.0.0] - Initial release.
[Version 1.0.1] - Bug fixes. 
Fixed a bug where the estimate wasn't pausing when the activity was paused.
Fixed a bug where the estimate wasn't restarted when the activity was restarted.
Fixed a bug where the estimate was using elapsed time instead of the activity time.
[Version 1.1.0] - Updated prediction algorithm 
[Version 1.1.1] - Bug fix
[Version 2.0.0] - Updated prediction algorithm 
[Version 2.1.0] - Added support for additional watches
