Calculation of averages on Data Tab in an activity

[R2Tom]

As you said… it was probably implemented that way by design.
This was the announcement

Interval data table updates

The interval data table on the activity data page now displays averages (with standard deviation) and totals for the selected intervals. Hover over interval group chips under the activity summary to highlight those rows on the table and click the chip to select. [Screenshot 2023-08-06 at 07.56.32] You can see the same data under the ride timeline chart. Click the “Intervals” drop down toggle under the chart (highlighted in blue here): [Screenshot 2023-08-06 at 07.54.22] For custom interval…