Does anyone understand splits_metric vs splits_standard?

[jsumners]

The docs for `DetailedActivity` claim that these fields are only for runs, but I seem them on rides as well. And what I am seeing makes no sense. I would assume the first split in each collection would be equivalent to one another, i.e. cover the same physical space on Earth. But I'm seeing a metric split like:

{
    "distance": 1007.7,
    "elapsed_time": 171,
    "elevation_difference": 25.8,
    "moving_time": 170,
    "split": 1,
    "average_speed": 5.93,
    "average_grade_adjusted_speed": null,
    "average_heartrate": 138.79041916167665,
    "pace_zone": 0
}

And the "corresponding" standard split as:

{
    "distance": 1610.2,
    "elapsed_time": 249,
    "elevation_difference": 29.6,
    "moving_time": 248,
    "split": 1,
    "average_speed": 6.49,
    "average_grade_adjusted_speed": null,
    "average_heartrate": 140.66122448979593,
    "pace_zone": 0
}

These numbers do not match up. Presumably the `elapsed_time` would be equal if the splits were covering the same stretch of Earth.

Also, anyone know if `average_grade_adjusted_speed` is a float? This property isn't mentioned at all in the documentation.

[Jan_Mantau · Accepted solution]

The so called "standard" split is for every mile. Grade adjusted speed is decimal like every other speed and only calculated for runs.