Tanda training value

This is a data field that gives a rolling marathon prediction time for your training runs. It is based on Tanda (2011) assuming you repeat a run of similar equivalence every day. If you haven't read Tanda (2011) https://www.jhse.ua.es/article/view/2011-v6-n3-prediction-of-marathon-performance-time-on-the-basis-/pdf and Christof's perspectives on it then this field won't make a useful sense to you. If you would like the field for your watch, and it isn't currently supported, let me know. The field saves all of the runs you do in a day to give you the accumulated Tanda value for the day. Please be aware that discarding an activity does not remove the Tanda value accumulated by the field. This is suboptimal behaviour, but an unavoidable feature of a Garmin IQ data field...

The field now accumulates daily values of distance and time.