With the relation chart, you can see the possible relationships and ratios of almost any data field, including your own user-defined custom fields, over a selected period of time.
Up to 100 charts can be displayed against each other.
The relation diagram has a special meaning when evaluating efficiency metrics and analysing your best or weakest training.
To find efficient activities, set the heart rate pace factor in relation to your own reference value. The reference value in this example is the average heart rate.
So you can easily see what your best activities were - the highest point with the lowest heart rate - and whether your aerobic efficiency differs greatly in relation to your heart rate.